On a particular day, sweets were to be equally distributed among 960 students of a school. However, on that particular day 360 students remained absent, Hence each student present on that day got three sweets extra. Had all 960 students remained present that day, how many sweets would each, student have got?
3
5
7
8
Answer : Option B.
Let number of sweets per student = X
According to the given conditions, we have
960X = 600(X+3)
X = 5
So, the correct answer is option B.
What should come in place of the question mark (?) in the following number series ?
9 10 24 81 340?
1376
1780
1570
1725
None of these
Answer : Option D.
Here, the pattern follows
9 × 1 + 1 =10
10 × 2 + 4 =24
24 × 3 +9 = 81
81 × 4 + 16 = 340
Similarly, 340 × 5 +25 = 1725
So, the correct answer is option D.
What would be the compound interest accrued on an amount of Rs9,000/- at the rate of 11 p.c.p.a. in two years ?
Rs.2088.90
Rs.2140.90
Rs.2068.50
Rs. 2085
None of these
Answer : Option A.
CI = A-P
CI = 9000 x(1+11/100)2- 9000=2088.90
So, the correct answer is option A.
What is the least number to be added to 2530 to make it a perfect square ?
50
65
75
80
None of these
Answer : Option E.
Check for squares of the numbers which gives value around 2530, So
Square of 50 = 2500
Square of 51 = 2601
2601 - 2530 = 71 should be added.
So, the correct answer is option E(none of these).
The difference between 20% of a number and 45% of the same number is 125. What is 40% of that number ?
186
200
196
465
None of these
Answer : Option B.
Let no. be x, then
45% of x – 20% of x =125
So, x = 500
Therefore, 40% of 500 = 200
The correct answer is option B.
A train running at the speed of 108 kmph, crosses a 365 meter long platform in 21 secs. What is the length of the train?
260 meters
275 meters
265 meters
285 meters
None of these
Answer : Option C.
Let the length of train = X meters
Speed of train = 108kmph = 108 × 5/18 = 30m/s
Distance = Speed × time
365 + X = 30 × 21
X = 265
So, the correct answer is option C.
In order to pass in an examination, a student is required to get 280 marks out of the aggregate marks. Hema got 264 marks and was declared fail by 2 percent. What is the minimum passing percentage of the examination ?
33%
35%
40%
44%
None of these
Answer : Option B.
Let maximum marks = X
Then, 2% of X = 280 - 264 = 16
=> X = 800
Then minimum passing %age = (280 /800) × 100 = 35
Therefore, the correct answer is option B.
he cost of 8 fans and 14 Ovens is Rs 36,520/-.What is the cost of 12 fans and 21 Ovens?
Rs. 56,800/-
Rs. 54,780/-
Rs. 57,950/-
Can't be determined
None of these
Answer : Option B.
Let the cost of one fan be Rs.F and the Cost of Oven be Rs.O.
Then, According to the question,
8F+14O = 36520
Dividing by 2, we get, 4F + 7O = 18260
Multiply by 3, we will get, 12F + 21O = 54780.
So, the correct answer is option B
Radius of a circular garden is 7 meter more than length of a rectangle whose perimeter is 364 meter and breadth is 84 meter. What will be cost of fencing the garden (only at the circumference), if the cost of fencing is Rs 8 per meter?
Rs. 5,456/-
Rs. 6,144/-
Rs. 5,296/-
Rs. 5,280/-
None of these
Answer : Option D.
If the Length of rectangle = L meters
Then, according to the question,
2(L +84) = 364
=> L = 98
Radius of circle = 98 + 7 = 105 meters
Circumference of the circle = 2πr = 660
Cost of fencing = 660 × 8 = Rs 5280
Hence, the correct answer is option D. .
If 43x + 43y = 4816, what is the average of x and y ?
56
112
62
124
None of these
Answer : Option D.
Divide the given equation by 43, we get, x + y = 112
Average = (x + y)/2 = 112/2 = 56
Hence, the correct answer is option A.
