Question

4. The least number which is a perfect square and 1
is divisible by each of 16, 20 and 24 is
(a) 240 (b) 1600 (c) 2400 (d) 3600
If n is an even natural number, then the largest
natural number by which n(n + 1) (n + 2) is
divisible, is
(a) 6 (b) 8 (c) 12 (d) 24 15
Q. Find the least number which when divided by
15, leaves a remainder of 5, when divided by
25, leaves a remainder of 15 and when divided
by 35 leaves a remainder of 25.
(a) 515 (b) 525 (c) 1040 (d) 1050
6.​

Answer 1

Answer:

1. d.3600

2. d. 24

3. answer will be 10

15 -5 =10

25-15 = 10

35 - 25 = 10

LCM(10,10,10,)