MBA Exam

The weight of 3 heaps of gold are in ratio 5:6:7.By what fraction of themselves must the first two be increased so that ratio changes to 7:6:5 ?Approach

1) 24/25, 2/5
2) 48/50,4,5
3) 48/50,3/5

Read Solution (Total 3)

Initially its in ratio 5:6:7
Let it be for ex: 100, 120, & 140 (Ratio is 5:6:7)

To make the ratio to 7:6:5 (Keeping 140 constant) it will come up as:

140/5 = 28
So 28x7: 28x6: 28x5 =

196:168:140 ... This is the required (7:6:5)

(196-100) / 100 = 24/25 & (168-120) / 120 = 2/5
12 years agoHelpfull: Yes(12) No(0)

1) 24/25, 2/5

If initial weights are 5,6,7 units
and
now First heap is changed to 5x and second heap is changed to 6y, then
5x/7= 7/5
x=49/25; so first heap should be increased by (49/25-1=)24/25 times.
6y/7 =6/5
y=7/5; so second heap should be increased by (7/5-1)or 2/5 times.
12 years agoHelpfull: Yes(5) No(1)
24/25 and 2/5
10 years agoHelpfull: Yes(0) No(0)

MBA Other Question

two digits selected from 0,1,2,3,4,5,6,7,8,9.slip on which code is handwritten allows confusion b/w top n bottom coz dey r indistinguishable.e.g 91 can be confused with 16. how man codes are there such dat there is no possibility of any confusion ?

1) 25
2) 75
3) 80
4) none
Harish and Manish run back and forth from Model colony to Kothrud at the speeds 12km/h and 18km/h respectively. They start simultaneously - Manish from Model colony and Harish from Kothrud. If they cross each other for the first time in 14 minutes from the start, at what distance from Kothrud will they cross each other for the fifth time?

1) 2.8 km
2) 3.5 km
3) 4.2 km
4) 4.8 km