Unanswerd puzzles under tag mathematical

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In an arithmetic series, if the sum of third and seventh terms is 8 and sum of the sixth and tenth terms is 26..........

posted 1 day ago by Aman

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Square ABCD lies on a flat surface and has regular hexagons attached as flaps on sides AB and AD. Each flap............

posted 2 days ago by Udita

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A factory recycles plates for use in its canteen. Eight used plates are needed for each new plate. If there are.......

posted 2 days ago by Nimish

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Average score of a group of a athlete was 42 in certain event. When a new athlete join the group and scores equal.......

posted 2 days ago by Atif

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What is the probability that sum of digits of this number is more than 10?

posted 4 days ago by Deepak Chitragar

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Certain work is proposed to be completed in 54 days with 30 men. But after 36 days it is observed that only 40% ........

posted 5 days ago by Riteshwar

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A motorboat whose speed is 27 km/hr in still water takes 20 minutes more to go 40 km upstream than to cover............

posted Aug 4 by Prithvi

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Ratio of milk and water is 5:3. When 4.8 litres of mixture is taken out and added 800 ml milk and 600 ml water..........

posted Aug 3 by Upma

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Six lovebirds and 2 parrots were bought for Rs. 150. If 4 more lovebirds were bought for Rs. 140, than parrots..........

posted Aug 3 by Varuna Magar

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If costs of constructing a path of uniform width around a circular garden of diameter 50 meter at the rate of...........

posted Aug 2 by Ujjwal Mehra

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Can you arrange four 9\’s and use at most 2 math symbols, to make the total 100?

posted Aug 2 by Sandeep Bedi

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A bag contains 5 green, 7 red and 4 white balls. If three balls are drawn one after the other with replacement..........

posted Aug 1 by Sidharth Malhotra

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See if you can find 2 fractions whose denominators are 9 and 5 and the sum is equal to 113/45.

posted Jul 30 by Madhavi Latha

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A number consists of four different digits where last digit is two times the first digit, second digit is two times.....

posted Jul 29 by Brijesh Talwar

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Roshan's present age is 5 times his daughter's present age and five-eighth of his mother's present age. The average.....

posted Jul 28 by Samardeep Acharya

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A bus takes 1 hour 20 minutes more to travel a distance of 210 km, if its speed is reduced by 10 km/hr than actual......

posted Jul 27 by Simranjeet Singh

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Two varieties of tea having cost per kg Rs. 36 and Rs. 45 respectively are mixed in the ratio 13:8...............

posted Jul 26 by Yogeshwar Thakur

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In an examination, 85% of the candidates passed in English and 65% of the candidates passed in Mathematics..........

posted Jul 25 by Aman

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What was the average number of runs for the last 50 overs only?

posted Jul 22 by Mohammad

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A and B take part in a 500 m race. A runs at 24 km per hour. A gives B a start of 40 m and still beats him............

posted Jul 21 by Basabdatta Mukherjee

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Can you find out the remainder when 3^300 is divided by 5?

posted Jul 20 by Akriti

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In a school, a student can opt the language subject out of English, Hindi and Sanskrit either single...........

posted Jul 19 by Prithvi

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Suppose the binary operation ☆ is defined so that x ☆ y = (x + y) / (1 + xy). Simplify the expression........l

posted Jul 19 by Varun Kumar

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A brand new Mobile Phone was on sale at 20% as a promotional offer. By what per cent must the Mobile price..............

posted Jul 18 by Sandeep Otari

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The average weight of a group of boys is 48 kg. If 8 boys of average weight 51 kg leave and 3 boys.........

posted Jul 18 by Ankur Athari

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A retailer sells two items having cost prices Rs. 1200 and Rs. 1500 respectively. He offers discount of 8% on both......

posted Jul 15 by Amarvansh

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If 21x = 79x, what is the value of x?

posted Jul 14 by Chahat Sharma

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What is the value of 'k' in the following sum?

posted Jul 14 by Saif Khanam

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If, 3^(2x+y) = 243 and 2^(x+2y) = 256 then 6x+3y = ?

posted Jul 13 by Aastha Joshi

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A number of light bulbs were purchased to illuminate a house. However only 3/5 of them were needed and 72 leftover......

posted Jul 12 by Simranjeet Singh

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What is the distance between the centers of circles X and Y?

posted Jul 12 by Nikita Sehgal

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It costs Rs. 1089 to paint all the surfaces of a cube at the rate of Rs. 1.5 per meter square. If the same cube.........

posted Jul 11 by Mishthy Mukherjee

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Replace the letters of words with a number so that the below equation holds true.

posted Jul 8 by Swati Arora

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A, B, C and D are four positive numbers such that A is 2/3 times of B, B is 5/6 times of C and C is 3/5 times...........

posted Jul 8 by Dilbagh

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A dishonest shopkeeper professes to sell at a discount of 15% to his cost price but uses 400 gm instead of 500 gm.......

posted Jul 7 by Atif

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If A, B and C are positive integers and 7A = 4B = 8C, then the least possible value of A + B + C?

posted Jul 6 by Basabdatta Mukherjee

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Use 4 4's and only 4 4's along with any mathematical operators to make a total of 42.

posted Jul 6 by Balwinder

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For the equation 10x^2 + kx + 6 = 0, if roots are in the ratio 3 : 4, then find positive value of k.

posted Jul 4 by Vikram Luthra

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What number when added to itself, subtracted from itself, multiplied by itself and divided by itself, will add up.......

posted Jul 4 by Prithvi

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Imagine a twelve by twelve square. How many rectangles of any size can you construct from it?

posted Jul 4 by Varun Kumar

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Three cylinders of height of 8 cm and diameters 0.24 m, 0.28 m and 0.16 m respectively are melted to form...............

posted Jul 1 by Ankur Athari

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Nine men can finish a work in 20 days whereas 12 women can finish the same work in 18 days. If 6 men and 9 women........

posted Jun 30 by Sandeep Bedi

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A pipe can fill a tank in 8 hours. After 3/5 of the tank is filled, four more pipes of half capacity is opened.........

posted Jun 29 by Amarvansh

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I want to fill my bucket using both cold and hot water. I have two taps........How Long will it take to fill the bucket?

posted Jun 28 by Brijesh Talwar

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If 8K^6 + 15K^3 -2 = 0, then for positive value of K, find (K + 1/ K)^2 = ?

posted Jun 28 by Saif Khanam

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John was a very careless driver, so his owner Jacob gave him an offer that he will get an incentive of Rs.30............

posted Jun 27 by Aastha Joshi

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The average of some numbers is 57. If 68% of the numbers are increased by 6 and the remaining are decreased by 8........

posted Jun 27 by Aastha Joshi

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A train crosses a man running in opposite direction in 21 seconds and same train crosses a 240 meters long platform.....

posted Jun 24 by Yogeshwar Thakur

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A and B under took a work for Rs. 11500. When they worked together A got Rs 2300 less than B and A takes 7 days.........

posted Jun 23 by Aman

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On 22/06/2022, Mr. Samarth sets the clock right at 22:06 hrs. If the clock looses 6 seconds in every 22 minutes.........

posted Jun 22 by Vishal