100+ Percentage Questions and Answers Pdf - 2
Question: 6
What percent is 1 minute and 12 seconds of an hour?
(A) 2%
(B) 10%
(C) 12%
(D) 20%
Ans: A
1 min 12 sec = $$1{12}/{60}$$ = $$1{1}/{5}$$ min = $${6}/{5}$$ min.
1 hour = 60 min.
∴ Required percentage = $$({6}/{5} × {1}/{60} × 100)%$$ = 2%.
Question: 7
Kamal has 160 toffees. He gave 5% toffees to Ravi, 15% toffees to Anita and one fourth of the toffees to Gagan. How many toffees are left with Kamal after the distribution?
(A) 78
(B) 88
(C) 89
(D) 99
Ans: B
Number of toffees distributed = 5% of 160 + 15% of 160 + $${1}/{4}$$of 160
= $$({5}/{100} × 160)$$ + $$({15}/{100} × 160)$$ + $$(160 × {1}/{4})$$
= 8 + 24 + 40 = 72.
∴ Number of toffees left behind = 160 – 72 = 88.
Question: 8
In an examination, the percentage of students qualified to the number of students appeared from school A is 70%. In school B, the number of students appeared is 20% more than the students appeared from school A and the number of students qualified from school B is 50% more than the students qualified from school A. What is the percentage of students qualified to the number of students appeared from school B?
(A) 30%
(B) 70%
(C) 87.5%
(D) 97.5%
Ans: C
Let number of students appeared from school A = 100.
Then, number of students qualified from school A = 70.
Number of students appeared from school B = 120.
Number of students qualified from school B = $$({150} / {100} × 70)$$ = 105.
∴ Required percentage = $$({105}/{120} × 100)$$% = 87.5%.
Question: 9
In a mixture of milk and water, the proportion of water by weight was 75%. If in the 60 gms mixture 15 gm of water was added, what would be the percentage of water?
(A) 70%
(B) 75%
(C) 80%
(D) 95%
Ans: C
Weight of water in 60 gms mixture
= 75% of 60 gm = $$({75}/{100} × 60)$$gm = 45gm.
Weight of water in 75 gms mixture = (45 + 15) gm = 60 gm.
∴ Required percentage = $$({60}/{75} × 100)$$% = 80%.
Question: 10
Half of 1 percent written as a decimal is
(A) 0.2
(B) 0.02
(C) 0.05
(D) 0.005
Ans: D
$${1}/{2}$$% = $$({1}/{2} × {1}/{100})$$ = $${0.5} / {100}$$ = 0.005.
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