IBPS Government Jobs Exams Numerical Ability Age Problem

Ravi and Dev have an age ratio of 15 : 8, which will be 5 : 3nin 10 years time. Their present ages (in years) are:
option
(1) 15, 8
(2) 30, 16
(3) 45, 24
(4) 60, 32
(5) 75, 40

Read Solution (Total 1)

15x+10/8x+10=5/3
x=4
15x=60
8x=32
so 60,32
11 years agoHelpfull: Yes(0) No(0)

IBPS Other Question

It takes the same time to go 20 km downstream as it takes to go 12 km upstream. If the speed of the boat used is 8 km/hr in still water, the speed of the stream (in km/hr) is:
option
(1) 4
(2) 1
(3) 0
(4) 3
(5) 2 2 rice varieties costing Rs 25 per kg and Rs 35 per kg were mixed as 2 : 3 and sold so as to gain 20%. What was the SP of the mixture (Rs/kg)?
option
(1) 37.2
(2) 28.6
(3) 30
(4) 32
(5) 40.5