Ques 1.
IF A's height is 10% more than the B's, then how much percent less is B's height than that of A ?
(a) 10%
(b) 10 1/9%
(c) 10 1/11%
(d) 9 1/11%
Ans 1.
Ques 2.
A sum of money at simple interest amounts to Rs. 815 in 3 years and to Rs. 854 in 4 years .The Sun is
(a) Rs. 700
(b) Rs. 698
(c) Rs. 690
(d) Rs. 650
Ans 2. S.I. for one year = Rs. 39
. . S.I. for three years = Rs. 117.
. . Sum = 815 - 117 = 698.
. . S.I. for three years = Rs. 117.
. . Sum = 815 - 117 = 698.
Ques 3.
A Polygon has 90 diagonals .The number of sides of the polygon are
(a) 10
(b) 20
(c) 15
(d) 25
Ans 3. No. of diagonals in an n-sided polygon
Ques 4.
In a party ,everybody shakes hand with everybody else and there are 36 handshakes in all. The number of persons in the party are
(a) 9
(b) 12
(c) 18
(d) 24
Ans 4. Total Number of handshakes
= The number of ways of selecting 2 persons from among n persons.
. . The whole cistern will be filled in 10 minutes if all the pipes X, Y and Z are opened simultaneously.
=> 25 men can finish the whole work in 6 days.
. . 25 men = 15 men + 18 women
(1) => 5 men can finish the whole work in 30 days .
=> 9 woman can finish the whole in 30 days
=> 1 woman can finish the whole work in 270 days.
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. . The profit at the end of the year must have been divided between A and B in the ratio of 4500 x 12 : 3000 ( 12 -x),
i.e. 45 x 12 : 30 x 12 - 30 x
i.e. 36 : 24 - 2x.
= The number of ways of selecting 2 persons from among n persons.
Ans 5. In one minute , 1/12 + 1/15- 1/20 = 1/0 of the cistern will be full .Ques 5.
Two pipes X and Y can fill a cistern in 12 min and 15 min respectively and a pipe Z can empty the whole cistern in 20 min.How many minutes did it take for the cistern to fill ?
(a) 6
(b) 6 2/3
(c) 5
(d) 10
. . The whole cistern will be filled in 10 minutes if all the pipes X, Y and Z are opened simultaneously.
Ans 6. One man can finish the whole work in 150 Days.Ques 6.
15 men and 18 women together finish a work in 6 days.One man alone finishes that work in 150 days. One woman will finish the same work in
(a) 170 Days
(b) 222 days
(c) 230 Days
(d) 270 Days
=> 25 men can finish the whole work in 6 days.
. . 25 men = 15 men + 18 women
(1) => 5 men can finish the whole work in 30 days .
=> 9 woman can finish the whole in 30 days
=> 1 woman can finish the whole work in 270 days.
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Ans 7. Let the number be x.Ques 7.
If one-third of one -fourth of a number is 15, then three-tenth of that number is
(a) 35
(b) 36
(c) 45
(d) 54
Ans 8. Suppose B joined after X months.Ques 8.
A began a business with Rs. 4500. He was joined afterwards by B with Rs. 3000. For how much period does B join, if the profits at the end of the year were divided in the ratio of 2 : 1 ?
(a) 9 months
(b) 8 months
(c) 4 months
(d) 3 months
. . The profit at the end of the year must have been divided between A and B in the ratio of 4500 x 12 : 3000 ( 12 -x),
i.e. 45 x 12 : 30 x 12 - 30 x
i.e. 36 : 24 - 2x.
. . B joined after 3 months , i.e. B joined for 9 months .
Ans 9.Ques 9.
Abhinav an hit a target 4 times in 5 shots; Limba, 3 times in 4 shots; and Kalpana twice in 3 shots. They fire one each. What is the probability that all three shots hit the target ?
(a) 3/5
(b) 1/2
(c) 2/5
(d) 8/15
Ans 10.Ques 10.
If by selling 186 mobiles phones, the seller earns profit equal to the selling price of 31 mobile phones, What is his percentage profit ?
(a) 20 %
(b) 17 2/3%
(c) 19 1/3%
(d)Data inadequate
Ans 11.Ques 11.
A wheel of a motorbike has radius 35 cm. How many revolutions per minute must the wheel make so that the speed of the bike is 33 km/hr ?
(a) 300
(b) 250
(c) 200
(d) 220
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