Question
A rectangular plot of breadth 4m is fenced with wire
which is 20m in length. Find the area of square whose side is equal to the length of rectangle.Solution
Perimeter of rectangle = 20m 2(l + b) = 20 (l + 4) = 10 l = 10 ndash; 4 = 6 m Now area of square = side2 = 62 = 36 m2
If total number of factors of 1,260 is 'x', then find the value of (x - 4) (x + 6).
LCM of two prime numbers 'p' and 'q' is 323 where p < q. Find the value of 'q'.
- The total and the difference of L.C.M and H.C.F of two numbers are 432 and 96. If one of the numbers is 24, what is the other number?
- The sum and difference of L.C.M and H.C.F of two numbers are 294 and 126. If one of the numbers is 21, find the other number.
HCF of two numbers is 12 and their LCM is 924. If one number is 132, find the other.
Let N be the greatest number that will divide 86, 112, 138 leaving the same remainder in each case. Then sum of the digits in N is:
Five bells commence tolling together and tolls at intervals of 6, 12, 36, 42 and 60 seconds respectively. In 126 minutes, how many times do they toll to...
Two numbers are in the ratio 3:5 and their HCF is 20. Their LCM is
- The sum of the HCF and LCM of two numbers is 340, and the LCM is 16 times the HCF. If one of the numbers is 40, find the other number.
The HCF of two numbers is 18. Which of the following can never be their LCM?
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