57. A bus starts at 9:10 am from Delhi and reaches Chandigarh at 4:20 pm. The total time in this journey is
(1) 7 h 10 min
(2) rightly 7h
(3) 6 h 30 min
(4) 7 h 20 min
58. A student scored 18 marks out of 25 marks in the first test of Math. In the second test he scored 22 marks in the second test exceeds his first test by
(1) 4% (2) 8% (3) 16% (4) 80%
59. By selling a dozen pencil at the cost of 30 rupee he shopkeeper gains 10 rupee. His percentage of profit was
(1) 20 (2) 35 (3) 50 (4) 66
60. A drum is 2/3 full, if 50 L more required to fill it up, how much is the capacity of the drum?
(1) 90 L (2)150L (3) 120 L (4) 100 L (5) 90 L
Answers
Answer:
57) 1.
58) 3.
59) 3.
60) 2.
Answer:
57. (1)
58. (3)
59. (3)
60. (2)
Step-by-step explanation:
57. bus starts at 9:10 am = 9:10
bus stops at 4:20 pm= 16:20
total time of the journey = 16:20-9:10
=7 hours 10 minute
Hence, answer= 1) 7 h 10 min
58. In the first test of maths, a student scores 18 out of 25 marks
Hence, % of his marks in the first test
= (18/25 × 100)%
= (18 × 4)%
= 72%
In the second test of maths, he scores 22 out of 25 marks
Hence, % of his marks in the second test
= (22/25×100)%
= (22×4)%
= 88%
Clearly, he scored more marks in the second test
Therefore, % by which he exceeds his first test = % if second test - % of first test
= (88-72)%
= 16%
Hence, answer= 3) 16%
59. [One dozen = 12 pencils]
SP of 12 pencils = Rs. 30
Profit ( gain) = Rs. 10
CP = SP - gain
= Rs. ( 30 - 10 )
= Rs. 20
Profit % ( Gain % )
= (Profit / CP × 100)%
= (10 / 20 × 100)%
= 50 %
Hence, answer= 3) 50 %
60. Let the total capacity of drum be x.
A/Q,
x - 2/3x = 50
( 3x - 2x) / 3 = 50
x / 3 = 50
x = 50 × 3
x = 150
Therefore, total capacity of the drum = x = 150 l
Hence, answer= 2) 150 L
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