Directions (1–8): What approximate value should come in place of the question mark (?) in the following? (You are not expected to calculate the exact value). 8787 ÷ 343 × √5050 = ?
A. 100
B. 250
C. 180
D. 100
2 .
3√54821354821 × (303 ÷ 8) = (?)2(?)2
A. 48
B. 38
C. 28
D. 18
3 .
5885 of 4011.33 +710107 of 3411.22 = ?
A. 4810
B. 4820
C. 4890
D. 4860
4 .
23% of 6783 + 57% of 8431 = ?
A. 6460
B. 6420
C. 6480
D. 6360
5 .
Ratio of cost price and marked price of an article is 3:5. Ratio of profit percentage and discount percentage is 5:3. Find discount percentage?
A. 10%
B. 10÷3
C. 20%
D. 5%
6 .
A can do a piece of work in the days taken by B and C together A and B can do piece of work in 10 days and C can do in 50 days. Find in how many days B alone can complete the work?
A. 25
B. 35
C. 45
D.
7 .
10 year ago A was 3 times of the age of B and hence, after 10 years, he will be twice the age of B. Find the respective ratio of their present age.
A. 7:3
B. 3:7
C. 1:2
D. 2:1
8 .
A boat goes in a running water flowing at the rate of 1.5 kmph. In a given time, boat goes twice the distance in downstream than upstream. Find speed of the boat in still water.
A. 4.5
B. 3
C. 5
D. None of the Above
9 .
If a train is going at the rate of 40 kmph, it is late by 11 min. If it is going at the rate of 50 kmph, it is late by 5 mins to reach at a destination. Find actual time to complete the journey.
A : B 3 : 1 – 10 years before 2 : 1 – After 10 years equating difference we get So, 3 unit = 60 years Thus, in present A and B's age is 70 years and 30 years respectively. ratio = 7 : 3.
Answer : Option A
Explanation :
A : B 3 : 1 – 10 years before 2 : 1 – After 10 years equating difference we get So, 3 unit = 60 years Thus, in present A and B's age is 70 years and 30 years respectively. ratio = 7 : 3.
8 .
Answer & Explanation
Answer : Option A
Explanation :
(1) As, the time is equal for downstream and upsteam distance. Now,, DistancespeedspeedDistance = 29(Distance)speedspeed29(Distance) XM−1.5M−1.5X = 2XM+1.5M+1.52X M = 4.5
Answer : Option A
Explanation :
(1) As, the time is equal for downstream and upstream distance. Now,, DistancespeedspeedDistance = 29(Distance)speedspeed29(Distance) XM−1.5M−1.5X = 2XM+1.5M+1.52X M = 4.5
9 .
Answer & Explanation
Answer : Option A
Explanation :
x = Actual time in minutes. S × T = S × T 40 × X+116060X+11 = 50 × X+56060X+5 x = 19 minutes.
Answer : Option A
Explanation :
x = Actual time in minutes. S × T = S × T 40 × X+116060X+11 = 50 × X+56060X+5 x = 19 minutes.
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