A school bus travels from Delhi to Mumbai. There are four children in the bus. Each child has four backpacks with him. There are four dogs sitting in each backpack. Every dog has four puppies with her. All these dogs have four legs, with four toes at each leg.
Answer is quite lengthy and tricky but simple
16 backpacks(Each child has 4 backpacks)
64 dogs (Each backpack has 4 dogs)
256 puppies (Each dog has 4 puppies)
Now 256 puppies had total= 256*4 legs =1024 * 4 toes = 4096 toes
64 dogs had total = 64 * 4 legs = 256 * 4 toes =1024 toes
4 chidren had total =4 * 10 toes = 40 toes
So the total toes on bus will be(except driver) = 4096+1024+40= 5160 toes
If considering driver answer will be = 5160 + 10 =5170
Can you calculate the total number of square in the given figure?
This must be done in your head only. Do NOT use paper and pencil or a calculator. Try it.
Take 1000 and add 40 to it. Now add another 1000. Now add 30. Add another 1000. Now add 20. Now add another 1000. Now add 10. What is the total?