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Application Sums
1) The circumference of a circle is equal to the perimeter of a square. The side of the square is 55 cm. What is double the diameter of the circle?
A) 35 cm
B) 120 cm
C) 140 cm
D) 84 cm
E) 70 cm
2) To complete a work Jeba takes 50% more time than Josh. If together they take 21 days to complete the work, how much time shall Josh take to do it alone?
A) 45 days
B) 40 days
C) 30 days
D) 35 days
E) 25 days
3) A sells a bike to B at a profit of 20%. B sells it to C at a profit of 25%. C sells it at a loss of 10% to D. If D pays Rs.54000 for it, the cost price of the bike for A is
A) Rs.36000
B) Rs.40000
C) Rs.42000
D) Rs.38000
E) Rs.32000
4) If the speed of a car be 62.4 kmph, how many meters would it cover in 15 minutes?
A) 1500 meters
B) 1560 meters
C) 156000 meters
D) 156 meters
E) 15600 meters
5) The ratio of speed of current to that of speed of the boat is 5: 11. If the boat goes downstream in 3 hours 30 minutes, then it will return in
A) 9 hours 20 min
B) 10 hours
C) 8 hours 40 min
D) 6 hours 50 min
E) 7 hours 45 min
Data Interpretation
Study the following information carefully and answer the questions given below.
The pie chart shows the percentage distribution of number of boys in six different schools.
Total number of boys = 2400
6) If the ratio of the number of boys to number of girls in school “T” is 7: 8. Then find the number of girls in school “T”.
A) 324
B) 384
C) 336
D) 368
E) 372
7) Total number of boys in school “P” is what percent more than total number of boys in school “T”?
A) 33 (1/3) %
B) 66 (2/3) %
C) 38 (4/7) %
D) 42 (6/7) %
E) 50 %
8) Find the average number of boys in school Q, R and S together?
A) 384
B) 354
C) 324
D) 360
E) 408
9) Find the central angle of boys in school “U”?
A) 720
B) 68.20
C) 79.60
D) 57.20
E) 64.80
10) Total number of boys in school “P” is how much more then total number of boys in school “Q”?
A) 330
B) 264
C) 396
D) 363
E) 298
Answers :
1) Answer: C
The circumference of a circle is equal to the perimeter of a square = 2πr = 4a
2 * 22/7 * r = 4 * 55
r = 35
Diameter = 2r = 70
Double the diameter of the circle = 2 * 70 = 140
2) Answer: D
Time ratio between Jeba and Josh = 3: 2
Efficiency ratio between Jeba and Josh = 2: 3
Together efficiency = 5
5 × 21 = 3 × x
Josh work = 35 days
3) Answer: B
Cost price of A = x
x × 120/100 × 125/100 × 90/100 = 54000
x = Rs.40000
4) Answer: E
Distance = speed * time
D = 62.4 × 15/60 × 1000
D = 15600 meters
5) Answer: A
The ratio of speed of current to that of speed boat is 5: 11
From this ratio of speed of upstream = 11 – 5 = 6
Speed of downstream = 11 + 5 = 16
Distance same
16 × 3 (½) = 6 × x
= > x = 9 (1/3) = 9 hours 20 min
Directions (6-10):
6) Answer: B
Number of boys in school T = 2400 × 14/100 = 336
Ratio between number of boys to number of girls in school “T” = 7: 8
Number of girls in school T = 7x = 8 × 336
Number of girls in school T = 384
7) Answer: D
Required percentage = (20 – 14)/14 * 100
= 6/14 * 100
= 300/7 = 42 (6/7)% more
8) Answer: A
Average number of boys in school Q, R and S = (9 + 15 + 24)/3 = 16%
= 16/100 * 2400 = 384
9) Answer: E
Required angle = x * 100 = 18 * 360
Required angle = 64.80
10) Answer: B
Total number of boys in school “P” = 20/100 * 2400 = 480
Total number of boys in school “Q” = 9/100 * 2400 = 216
Difference = 480 – 216 = 264
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This post was last modified on November 5, 2021 9:39 pm