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DIRECTIONS: What will come in place of the question mark (?) in the following questions?
0.2 of 175 + 5[2 + 49.5% x 2304 – (2 + 94.5% x 252)] = ?
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35 + 5[2 + 1140.48 – (240.14)] = ?
35 + 5[902.34] = ?
35 + 4511.7 = ?
? = 4546.7
25 + 27 + 33 = ?
? = 85
456 ÷ 24 × 38 – 948 + 364 = ?
19 x 38 – 584 = ?
? = 138
DIRECTIONS: Find the missing term in the following series.
36, 100.5 208, ?, 552, 783.5
36 + 21.5 × 3 = 100.5
100.5 + 21.5 × 5 = 208
? = 208 + 21.5 × 7 = 358.5
358.5 + 21.5 × 9 = 552
547 + 21.5 × 11 = 783.5
54, 58, ?, 356, 3560, 3572
54 + 4 = 58
? = 58 × 6 = 348
348 + 8 = 356
356 × 10 = 3560
3560 + 12 = 3572
The simple interest accrued on Rs.18000 after four years is Rs. 7920. What will be the difference between the compound interest and the simple interest on the same sum at the same rate of interest after two years, provided the interest is compounded annually?
A starts from a place P to go to a place Q. At the same time B starts from Q for P. If after meeting each other A and B took 4 and 9 hours more respectively to reach their destinations, the ratio of their speeds is:
A committee of four members is to be formed out of 5 men and 4 women. What is the probability that the committee consists of at least one woman?
The probability that the committee has no woman = 5C4 / 9C4
Two persons A & B together can complete a piece of work in 12 days. If A work at twice his efficiency and B at half his efficiency, then the work will be completed in eight days. Then number of days in which A alone can complete the work is?
In a mixture of 80 litres, the ratio of wine and water is 13 : 3. If the ratio of wine and water is to be 5 : 2, then how much water is to be added to the mixture(in litres)?
In a mixture of 80 litres, quantity of wine = 13/16 × 80 = 65 litres
And water = 80 – 65 = 15 litres
Let X litres of water is added, then
65/(X + 15) = 5/2
75 + 5X = 130
X = 11
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