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Quiz 17
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Q.1
In a mixture of milk and water, the proportion of water by weight was 75%. If in the 60 gm mixture 15 gm of water was added, what would be the percentage of water ?
75%
88%
90%
100%
None of these
Q.2
In a factory, producing parts for an automobile, the parts manufactured on the shop floor are required to go through three quality checks, each conducted after a specific part of the processing on the raw materials is completed. Only parts that are not rejected at one stage are put through the subsequent stages of production and testing. If average rejection rates at these testing machines during a month are 10%, 5% and 2% respectively, then what is the effective rejection rate for the whole plant ?
15.20%
16.21%
16.48%
17%
Q.3
Aman's expense is 30% more than Vimal's and Vimal's expense is 10% less than Raman's. If the sum of their expenses is Rs. 6447, then what would be Aman's expense ?
Rs. 1890
Rs. 2100
Rs. 2200
Rs. 2457
None of these
Q.4
If A is 150 percent of B, then B is what percent of (A + B) ?
$$33\frac{1}{3}\% $$
$$40\% $$
$$66\frac{2}{3}\% $$
$$75\% $$
Q.5
Solve this :
(23.6% of 1254) - (16.6% of 834) = ?
153.5
155.5
157.5
159.5
None of these
Q.6
One-fourth of sixty percent of a number is equal to two-fifth of twenty percent of another number. What is the respective ratio of the first number to the second number ?
4 : 7
5 : 9
8 : 13
Cannot be determined
None of these
Q.7
In an examination, 96% of students passed and 500 students failed. How many students did appear at the examination ?
14000
12500
12000
13500
Q.8
Find the number :
85% of 420 + ?% of 1080 = 735
25
30
35
40
Q.9
What is 45% of 25% of $$\frac{4}{5}$$
th
of 850 ?
67.5
69.5
76.5
83.5
None of these
Q.10
In an examination it is required to get 36% of the aggregate marks to pass. A student gets 198 marks and is declared failed by 36 marks. What is the maximum aggregate marks a student can get ?
480
550
650
Cannot be determined
None of these
Q.11
Depreciation applicable to an equipment is 20%. The value of the equipment 3 years from now will be less by :
45%
48.8%
51.2%
60%
Q.12
In a hotel, 60% had vegetarian lunch while 30% had non-vegetarian lunch and 15% had both types of lunch. If 96 people were present, how many did not eat either type of lunch ?
20
24
26
28
Q.13
1 litre of water is added to 5 litres of alcohol water solution containing 40% alcohol strength. The strength of alcohol in the new solution will be :
$$30\% $$
$$33\frac{1}{3}\% $$
$$33\frac{2}{3}\% $$
$$33\% $$
Q.14
From the salary of an officer, 10% is deducted as house rent, 20% of the rest, he spends on conveyance, 20% of the rest he pays as income tax and 10% of the balance, he spends on clothes. Then, he is left with Rs. 15552. Find his total salary.
Rs. 25000
Rs. 30000
Rs. 35000
Rs. 40000
Q.15
It costs Rs. 1 to photocopy a sheet of paper. However, 2% discount is allowed on all photocopies done after first 1000 sheets. How much will it cost to copy 5000 sheets of paper ?
Rs. 3920
Rs. 3980
Rs. 4900
Rs. 4920
Q.16
Solve this : 30% of 1225 - 64% of 555 = ?
10.7
12.3
13.4
None of these
Q.17
A and B are two fixed points 5 cm apart and C is a point on AB such that AC is 3 cm. If the length of AC is increased by 6%, the length of CB is decreased by :
6%
7%
8%
9%
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