Choose the correct answer.
What is the value of $4^-2 $?
Option 1 : 1/4
Option 2 : 1/16
Option 3 : -16
Option 4 : None of these
Additional Questions
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Ques : Choose the correct answer. |
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A tyre has two punctures. The first puncture alone would have made the tyre flat in 9 minutes and the second alone would have done it in 6 minutes. If air leaks out at a constant rate, how long does it take both the punctures together to make it flat ? |
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A is twice as good as workman as B and together they finish a piece of work in 18 days. In how many days will B alone finish the work. |
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To complete a work A and B takes 8 days, B and C takes 12 days, A,B and C takes 6 days. How much time A and C will take |
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A can do a piece of work in 15 days and B alone can do it in 10 days. B works at it for 5 days and then leaves. A alone can finish the remaining work in |
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Find the largest number which divides 62,132,237 to leave the same reminder |
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Let N be the greatest number that will divide 1305, 4665 and 6905, leaving the same remainder in each case. Then sum of the digits in N is: |
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The least number which should be added to 2497 so that the sum is exactly divisible by 5, 6, 4 and 3 is: |
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