Question
Avinash is ranked 11th from the top in the class and Ira
is ranked 7th from the bottom. If their positions get interchanged, Avinash will rank 15th from the top and Ira is ranked 11th from the bottom. How many total students appeared for the exams?Solution
Ira’s rank from the bottom + after interchanged position avinash’s rank from the top (ira’s rank from the top) -1 = 7 + 15 -1 = 22 -1 = 21
Let x be the smallest number which when subtracted from 31560 makes the resulting number divisible by 13, 16, 25 and 30. The product of the digits of x ...
From a point on a circular track 10 km long A, B and C started running in the same direction at the same time with speeds of 3(1/3) km/h, 5 km/h and 2 k...
- The sum and difference of L.C.M and H.C.F of two numbers is 216 and 184. If one of the numbers is 25, then find the other number.
HCF of two numbers 64 and 96 can be expressed in the form of (20m – 108) whereas LCM of these two numbers can be expressed in the form of (60n – 18)...
How many pairs of natural numbers (x, y) exist such that x>y and the product of x, y and HCF (x, y) = 2520? solve this
Find the LCM of 25/14, 15/28, 30/21
A farmer has 1517 cows and 902 sheep. He farms them into flocks, keeping cows and sheep separate and having the same number of animals in each flock. If...
The H.C.F. of two numbers is 16 and the other two factors of their L.C.M. are 4 and 13. The larger of the two numbers is:
Two numbers are in the ratio 3:5 and their HCF is 20. Their LCM is
- The product of two numbers is 1344 and their L.C.M is 168. What is the H.C.F of the two numbers?
Relevant for Exams:
