If the three digit number B9A is a perfect square, find, A-B
If the three digit number B9A is a perfect square, find, A-B ? (a) 6 (b) 7 (c) 5 (d) 9 Sol: 142=196 A=6 B=1 A-B=5
If the three digit number B9A is a perfect square, find, A-B Read More »
quantitative aptitude
How many factors of 1040 are perfect squares?
How many factors of 1040 are perfect squares? (a) 3 (b) 4 (c) 6 (d) 5 Sol: Factors of 1040 24×13×5 If A no. is perfect square power of no. is always even. or zero power of no. – 0, 2, 4, 6 1040→ 24×13×5 1, 4, 16, are factors of no. 1040 also perfect
If (x-1) (x + 1) =1, Find (x+1)³- 1/(x+1)3+4=?
If (x-1) (x + 1) =1, Find (x+1)³- 1/(x+1)3+4=? (a) 6 (b) 27 (c) 18 (d) 9. Sol:
Vikas score 42 marks in an exam and failed by 2% and Sumit scores 36% and passed by 9 marks in same exam
Vikas score 42 marks in an exam and failed by 2% and Sumit scores 36% and passed by 9 marks in same exam. How much marks they together required to reach 80% in same exam. (a) 144 (b) 160 (c) 150 (d) 120 Sol: ATQ, 42 + 2% = 36% – 9 51 = 34%
Find the sum of Radius of circumcircle and incircle of right-angled triangle whose perpendicular sides are x and y
Find the sum of Radius of circumcircle and incircle of right-angled triangle whose perpendicular sides are x and y Answer: Option B
Rahul takes 133 ⅓% more time to cover a distance in upstream as compare to cover same distance in downstream
Rahul takes 133 ⅓% more time to cover a distance in upstream as compare to cover same distance in downstream. If his friend’s speed and his speed are in ratio 6 : 7, when they go in downstream, then find the ratio of speed of Rahul and his friend in still water. (Speed of stream
A boat goes 24 km upstream and 36 km downstream total time taken is 6 hours. If the boat goes 36 km upstream and 24 km
A boat goes 24 km upstream and 36 km downstream total time taken is 6 hours. If the boat goes 36 km upstream and 24 km downstream then the time taken is 6 1/2 hours. Find the speed of boat in still water? (a) 9 km/hr (b) 8 km/hr (c) 12 km/hr (d) 10 km/hr
A and B play a game where each is asked to select a number from 1 to 25. If the two numbers match, both of them win a prize
A and B play a game where each is asked to select a number from 1 to 25. If the two numbers match, both of them win a prize. The probability that they will not win a prize in a single trial is (a) 1/25 (b) 24/25 (c) 2/25 (d) 1/3 Sol: The total number
A person spends 87.5% of his income. His income increases by 59% and expenditure increases by 67%. Find his percentage increase or decrease in savings
A person spends 87.5% of his income. His income increases by 59% and expenditure increases by 67%. Find his percentage increase or decrease in savings. (a) 12% (b) 4% (c) 3% (d) 13% Sol: