A. 10 min 20 sec
B. 11 min 45 sec
C. 12 min 30 sec
D. 14 min 40 sec
✅ The correct answer is option D. 14 min 40 sec.
Mathematics MCQs
Using all the letters of the word “NOKIA”, how many words can be formed, which begin with N and end with A?
A. 3
B. 6
C. 24
D. 120
✅ The correct answer is option B. 6.
Divide Rs.2000 into two shares in the ratio 3:2.
A. Rs.1200,Rs.800
B. Rs.800,Rs.1200
C. Rs.1500,Rs.500
D. Rs.1100, Rs.900
✅ The correct answer is option A. Rs.1200,Rs.800.
3x+2x=2000 5x=2000 x=400 3x=1200 2x=800
3x+2x=2000 5x=2000 x=400 3x=1200 2x=800
The sum of money at compound interest amounts to thrice itself in 3 years. In how many years will it be 9 times itself?
A. 18
B. 12
C. 9
D. 6
✅ The correct answer is option D. 6.
Find the greatest number which will divide 25, 73 and 97 as so to leave the same remainder in each case?
A. 12
B. 18
C. 24
D. 32
✅ The correct answer is option C. 24.
The ratio of boys and girls in a class was 11:13. 8 girls and 4 boys join the class from this academic year and the ratio becomes 4:5. Find the strength of the class.
A. 96
B. 68
C. 72
D. 108
✅ The correct answer is option D. 108.
Let the number of boys and girls in the class be 11x and 13x. 4 boys and 8 girls join the class. Strength of the class
Let the number of boys and girls in the class be 11x and 13x. 4 boys and 8 girls join the class. Strength of the class
= 11x+13x+4+8
= 24x+12 (11x+4):(13x+8) = 4:5 5*(11x+4)=4*(13x+8) 55x+20=52x+32 3x=12 x=4 24x+12=108
There are 30 people in a group. If all shake hands with one another , how many handshakes are possible?
A. 870
B. 435
C. 30!
D. 29! + 1
✅ The correct answer is option B. 435.
The ratio of two numbers is 5:9. If each number is decreased by 5, the ratio becomes 5:11. Find the numbers.
A. 30, 19
B. 21, 37
C. 15, 34
D. 15, 27
✅ The correct answer is option D. 15, 27.
Let the two numbers be 5x and 9x.
Let the two numbers be 5x and 9x.
(5x-5)/(9x-5) = 5:11
(5x-5)*11 = (9x-5)*5
55x – 55 = 45x – 25
10x = 30
x = 3
Therefore, the numbers are 15 and 27.
A rectangular field 30 m long and 20 m broad. How much deep it should be dug so that from the earth taken out, a platform can be formed which is 8 m long, 5.5 m broad and 1.5 m high where as the earth taken out is increase by 10/5?
A. 12 cm
B. 10 cm
C. 18 cm
D. 24 cm
✅ The correct answer is option B. 10 cm.
30 * 20 * x = (8 * 5.5 * 1.5)/2
30 * 20 * x = (8 * 5.5 * 1.5)/2
A batsman in his 17th innings makes a score of 85 and their by increasing his average by 3. What is his average after the 17th innings?
A. 34
B. 35
C. 36
D. 37
✅ The correct answer is option D. 37.
16x + 85 = 17(x + 3)
16x + 85 = 17(x + 3)