Question Text
Question 1 :
HCF of first 200 prime numbers which are of the form 10p+1 is
Question 2 :
Let 'K' be the greatest number that will divide 1305, 4665 and 6905, leaving the same remainder 25 in each case. Then sum of the digits of 'K' is
Question 3 :
The numbers 11284 and 7655, when divided by a certain number of three digits, leave the same remainder. Find that number of three digits.
Question 4 :
Product of two co-prime numbers is 117. Their LCM should be
Question 5 :
The ratio of two numbers is 3 : 4 their HCF is 4. Their LCM is:
Question 6 :
The LCM of two numbers is 4800 and their HCF is 160. If one of the numbers is 480, then the other number is :
Question 7 :
Three numbers are in the ratio 3 : 4 : 5 and their L.C.M. is 2400. Their H.C.F is
Question 8 :
Three bells begin tolling at the same time and continue to do so at intervals of 21, 28 and 30 seconds respectively. The bells will toll together again after
Question 9 :
Four bells begin to toll together and toll respectively at intervals of 6, 5, 7, 10 and 12 seconds. How many times they will toll together in one hour excluding the one at the start?
Question 10 :
Which of the following pairs of fraction add up to a number more than 5?
