RRB Group-D Model Paper 13 with answers for online practice

GIVEN:
Sum of three numbers is 160 and these numbers are in the ratio of 1 : 3 : 4.
CONCEPT:
Basic ratio concept.
CALCULATION:
Suppose the numbers are x, 3x and 4x respectively.
So,x + 3x + 4x = 160
8x = 160
x = 20
Now,
Product = x × 3x × 4x = 20 × 60 × 80 = 96000