DIGITAL SUM MCQ SET 4
1. The sum of three consecutive odd number is 375 . Find the square of the smallest of these number is?
(a) 15129
(b) 1309
(c) 15128
(d) 15245
Answer: A
2. The digit sum of 13 is 4 . 4 multiplied by itself and again by itself is 64 . The digit sum of 64 is 1 and the digit sum of 2197 is also 1 .
The cube root of 3375 equal to :
(a) 35
(b) 25
(c) 55
(d) 15
Answer: D
3. (14)ยณ = ?
(a) 2544
(b) 3644
(c) 2744
(d) 2844
Answer: C
4. Find the value of the following expression .
12ยณ + (-8)ยณ + (-4)ยณ
(a) 952
(b) 1152
(c) 1052
(d) 852
Answer: B
5. An arc of length 23.1 cm subtends an 18ยฐ angle at the centre . What is the area of the circle?
(use ฮ = 22/7)
(a) 16978.50 cmยฒ
(b) 16988.50 cmยฒ
(c) 16878.50 cmยฒ
(d) 16798.50 cmยฒ
Answer: A
6. On the market price of Rs.1250 of an article , three successive discounts of 5% , 15% and 20% are offered . What will be the selling price (in Rs.) after all discounts?
(a) 1,000
(b) 807.50
(c) 975.75
(d) 950.25
Answer: B
7. In an assemble election , a candidate got 60% of the total valid votes . 2% of the total votes were declared invalid . If the total number of voters polled in favor of that candidate .
(a) 90,000
(b) 78,000
(c) 86,400
(d) 88,200
ย Answer: D
8. A hall of 35m x 25m x 5m is to be painted . It has 3 windows on its three walls of 1.7m x 1.2m . The cost of the painting of the wall is Rs.12 per square meter the cost of the painting of the ceiling is Rs.18 per square meter and the cost of the painting of the window is Rs.15 per square meter . Find the total cost of the painting of the hall .
(a) Rs.24998.06
(b) Rs.23968.60
(c) Rs.22978.60
(d) Rs.22968.36
Answer: D
9. What amount a man would have received on a principal of Rs.7,500 after two years at simple interest at the rate of 7 percent per annum ?
(a) Rs.8,400
(b) Rs.8,550
(c) Rs.7,600
(d) Rs.7,400
Answer: B
10. The cube of the difference between two given natural numbers is 1728 , while the product of these two given number is 108 . Find the sum of the cubes of these two given numbers .
(a) 6048
(b) 5616
(c) 6024
(d) 5832
Answer: B
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