Find  sec29/cosec61+2 cot8° cot73 ° cot82 ° - 3 (sin238°+sin252°) (a)          0 (b)          1 (c)           -1 ...

If the three digit number B9A is a perfect square, find, A-B ? (a)          6 (b)          7 (c)           5 ...

How many factors of 1040 are perfect squares? (a)          3 (b)          4 (c)           6 ...

If (x-1) (x + 1) =1, Find (x+1)³- 1/(x+1)3+4=? (a)          6 (b)          27 (c)           18 ...

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% 1%=3/2 100% = 150 80% = ...

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. 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 is same in both ...

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 ...

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 of ways of choosing ...

If 2Sin²3θ -1=0. Then find 2cos6 ? (a)          -2 (b)          4 (c)           0 (d)          1 ...

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:

A bus and a car start from a place A toward B simultaneously at 10:00 am. Bus reach at B in 4 hours and return for C, which is exactly in the middle of A and B, and meet the car after 1 hour after leaving B. Find the time at which car reach C after returning from B. (a) 6:00 pm (b) 8:00 pm ...