IBM Number System Quiz -1

Let avg expenditure=X
Total expenditure=320x
Now new expenditure=(x-5)
Total expenditure =(x-5) X 400
ATP,
400X- 2000-320x=400
x=30
Total expenditure =10000

878 miles-year 1
1150 miles- year 2
1196 mile-year 3
1243.84 miles- year 4
1293.5 miles-year 5

Currently there is no PrepInsta Explanation. Did you know?

You can also submit your own version of explanations under user explanation section and also view other submitted explanations by other users.

Currently there is no PrepInsta Explanation. Did you know?

You can also submit your own version of explanations under user explanation section and also view other submitted explanations by other users.

8 new n/w,20 is already employed
total
n/w=20+8=28n/w
so that 75% came from same university then 28*75/100=21
we all know 8 n/w is recently hired then 21-8=13

so that the fraction is=13/20

20 students average height is 105cms

sum of heights/ 20 =105cms
sum of heights of 20 students= 105*20= 2100
10 students of average height 120 added
so their,
sum of 10 students height / 10 = 120
sum of heights of 10 students = 1200cms
By adding heights of 20 and 10 students ,
1200+2100 = 3300
average of 30 students = 3300/30 = 110 cms

Answer is 110 cms

Regular working hours in 4 weeks = (4 × 6 × 10) = 240 hours

Amount earned by working in these regular working hours
= 240 × 2.10 = Rs.504

Additional amount he earned = 525 - 504 = Rs.21

Hours he worked overtime = 21/4.2 = 210/42 = 5 hours

Total hours he worked = 240 + 5 = 245 hours

Let x be the number
x*10=100 .\\\'. x=10
He multiplied it by 10 instead of dividing it by 10
And so x/10=10/10=1

Typist A no of pages=42
Typist B no of pages=28
Total A+B=42+28=70
A=42/70*20=12
Answer is 12

Lets take workers as third worker as X
(115+65+X)/3 =95
(180+x) = 285
.\'. X=105