Here are the answers to the last week's aptitude questions. Read more for the answers. Refer here for the corresponding questions!!!
1.Answer:
(a) 0 %
Explanation:
Since 3x / 2 = x / (2 / 3)
2.Answer:
(c) 1
Explanation:
a percent of b : (a/100) * b
b percent of a : (b/100) * a
a percent of b divided by b percent of a : ((a / 100 )*b) / (b/100) * a ))=1
3.Answer:
(c) 5.3 %
Explanation:
He sells 950 grams of pulses and gains 50 grams.
If he sells 100 grams of pulses then he will gain (50 / 950) *100 =5.26
4.Answer:
(d) none of the above
Explanation:
Since every alternative letter starting from B of the English alphabet is
written in small letter, the letters written in small letter are b, d, f...
In the first two answers the letter E is written in both small & capital
letters, so they are not the correct answers. But in third and fourth answers the
letter is written in small letter instead capital letter, so they are not the answer.
5.Answer:
(c) x = 4
Explanation:
Since the side of the square is x + 2, its perimeter = 4 (x + 2) = 4x + 8
Since the side of the equilateral triangle is 2x, its perimeter = 3 * 2x = 6x
Also, the perimeters of both are equal.
(i.e.) 4x + 8 = 6x
(i.e.) 2x = 8 „» x = 4.
6.Answer:
(c) G.
Explanation:
The order in which they are climbing is R – G – K – H – J
15 – 18
7.Answer :
a) 336
Explanation : The series is 1.2.3, 2.3.4, 3.4.5, 4.5.6, 5.6.7, ..... ( '.' means product)
8.Answer :
(b) 1 hr 12 min
Explanation : The fast typist's work done in 1 hr = 1/2
The slow typist's work done in 1 hr = 1/3
If they work combinely, work done in 1 hr = 1/2+1/3 = 5/6
So, the work will be completed in 6/5 hours. i.e., 1+1/5 hours = 1hr 12 min
9.Answer :
(a) 35392
Explanation : The number closest to 100 which is greater than 100 and
divisible by 14 is 112, which is the first term of the series which has to be summed.
The number closest to 1000 which is less than 1000 and divisible by 14
is 994, which is the last term of the series.
112 + 126 + .... + 994 = 14(8+9+ ... + 71) = 35392
10.Answer :
(b) 1 P.M.
Explanation : 24 billion hours later, it would be 9 P.M. and 8 hours before
that it would be 1 P.M.
1.Answer:
(a) 0 %
Explanation:
Since 3x / 2 = x / (2 / 3)
2.Answer:
(c) 1
Explanation:
a percent of b : (a/100) * b
b percent of a : (b/100) * a
a percent of b divided by b percent of a : ((a / 100 )*b) / (b/100) * a ))=1
3.Answer:
(c) 5.3 %
Explanation:
He sells 950 grams of pulses and gains 50 grams.
If he sells 100 grams of pulses then he will gain (50 / 950) *100 =5.26
4.Answer:
(d) none of the above
Explanation:
Since every alternative letter starting from B of the English alphabet is
written in small letter, the letters written in small letter are b, d, f...
In the first two answers the letter E is written in both small & capital
letters, so they are not the correct answers. But in third and fourth answers the
letter is written in small letter instead capital letter, so they are not the answer.
5.Answer:
(c) x = 4
Explanation:
Since the side of the square is x + 2, its perimeter = 4 (x + 2) = 4x + 8
Since the side of the equilateral triangle is 2x, its perimeter = 3 * 2x = 6x
Also, the perimeters of both are equal.
(i.e.) 4x + 8 = 6x
(i.e.) 2x = 8 „» x = 4.
6.Answer:
(c) G.
Explanation:
The order in which they are climbing is R – G – K – H – J
15 – 18
7.Answer :
a) 336
Explanation : The series is 1.2.3, 2.3.4, 3.4.5, 4.5.6, 5.6.7, ..... ( '.' means product)
8.Answer :
(b) 1 hr 12 min
Explanation : The fast typist's work done in 1 hr = 1/2
The slow typist's work done in 1 hr = 1/3
If they work combinely, work done in 1 hr = 1/2+1/3 = 5/6
So, the work will be completed in 6/5 hours. i.e., 1+1/5 hours = 1hr 12 min
9.Answer :
(a) 35392
Explanation : The number closest to 100 which is greater than 100 and
divisible by 14 is 112, which is the first term of the series which has to be summed.
The number closest to 1000 which is less than 1000 and divisible by 14
is 994, which is the last term of the series.
112 + 126 + .... + 994 = 14(8+9+ ... + 71) = 35392
10.Answer :
(b) 1 P.M.
Explanation : 24 billion hours later, it would be 9 P.M. and 8 hours before
that it would be 1 P.M.
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