Question

1. Find the LC.M. of 12 and 18
(a) 6
(b) 36
(c) 12
(d) 18
2. LCM of two co-prime numbers is always
(a) product of numbers
(b) sum of numbers
(c) difference of numbers
(dinone
3. Find the least number which when divided by 6.15 and 18 leave remainder 5 in each case
(a) 90
(b) 180
(c) 95
(d)185
4. Divisibility by 2.5.10 can be checked by
(a) sum of digits
(b) last digit
(c) last two digits
(d) last three digits
5. Which is greatest 3-digit number exactly divisible by 8.10.12
(a) 120
(b) 360
(c) 960
(d) 980
6. 4- 2x2 15= 3x5, SO H.C.F. of 4 and 15 is
(a)
(b) 1
(c) 2
(d) 3​

Answer 1

Answer:

1. (b) 36

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