Question
The most economical means of managing the ‘tungro
virus’ disease in rice is:Solution
Use of resistant varieties is the most economical method for managing tungro virus.
The product of two positive integers is 3630. If their HCF is 11 and their sum is 143, then find the difference between the numbers.
- The product of two numbers is 3888 and their L.C.M is 324. What is the H.C.F of the two numbers?
Find the highest common factor (HCF) of (15/4) , (10/9) and (25/6)
Ratio of two numbers 10:21 and their LCM is 2520. Find the sum of the given two numbers.
Let N be the greatest number that will divide 82, 105, 128 leaving the same remainder in each case. Then sum of the digits in N is:
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)...
The LCM of the two numbers is 12 times their HCF. The sum of LCM and HCF is 429 and if both the number are smaller than their LCM. Find both numbers.
- The sum of HCF and LCM of two numbers is 765. The LCM is 84 times the HCF. If one of the numbers is 85, what is the other number? (find approximate value)
LCM of two numbers is 56 times their HCF, with the sum of their HCF and LCM being 1710. If one of the two numbers is 240, then what is the other number?
Two numbers are in the ratio 5:7. The product of their H.C.F. and L.C.M. is 5040. The sum of the numbers is:
