Question

Three numbers are in ratio 3 4 5 and their lcm is 2400. Their hcf is

Answer 1

Let the three numbers be 3x, 4x and 5x.

3x × 4x × 5x = 2400

60x = 2400

x = 2400/60

x = 40

3x = 3×40=120

4x = 4×40=160

5x = 5×40=200

HCF of 120, 160 and 200 is 40.

Hope it is helpful.

Answer 2

Refer the attachment.