Two persons A and B started a work and after 10 days B left the work. Two days after B left, C joined A, and the total work was completed in ‘ N’ days. Each person completes an equal share of the work. It is known that A and B together can complete the work in ‘ N’ days. ‘C’ alone can complete the ...

A cone is 68 m high and its slant height is inclined at 30° to the horizon. Find the area of i ts curved surface area (approx.)? (a) 50344 (b) 50349 (c) 50341 (d) 50346 Sol:

If the ratio of the mode to the median is 7 : 9 for a dataset. Find the ratio of mode to mean. (a) 14:23 (b) 7:10 (c) 11:23 (d) 7:11 Sol: The empirical relationship between mean mode and median is Mode = 3 Median – 2 Mean. Let the mode value be 7x, and the median be 9x, ...

Which of the following statement(s) is/are true? I.    √13+ √7< √9+ √11 II.      √17+ √13< √7+ √23 (a)          Only I (b)          Only II ...

Find the value of  (a)          3 (b)          4 (c)           6 (d)          5 Answer: Option C Sol:

The greatest number of 5 digit that is exactly divisible by each 8, 12, 16 is (a) 99972 (b) 99982 (c) 99864 (d) 99984 Sol: L.C.M. (8, 12, 16) = 48

Find the value of Cos45/sec30+sec60 Answer: Option B Sol:

Find the radius of frustum of cone given that volume is 1199m3 with a height of 42cm and one of the radius 3.5 m. (a)          2.2 m (b)          2.5 m ...

PQR is an isosceles triangle in which PQ = QR. QD is an angle bisector of ∠PQR. MN and ZX are two perpendicular on PR where MN = ZX. If QD = 27 cm, DX = 11 cm, XR = 9 cm, then find the area of shape QMNXZ? (a) 461.32 cm² (b) 430.65 cm² (c) 502.65 cm² (d) 411.35 cm² Sol:

A person covers 40% of the distance from A to B at 10 km/hr, 40% of the remaining distance at 9 km/hr. and the rest at 12 km/h. His average speed (in km/hr) for the journey is? Answer: Option C Sol: Ratio of distance = (40%: 24%: 36%) × 3 = 120 km: 72 km: 108 km

Find the least number of square tiles to cover a wall of length 4661 cm long and 3318 cm wide completely (a) 2196 (b) 3166 (c) 2810 (d) 2478 Sol:

Pankaj marks his goods 25% above the cost price. He sells 40% of goods at the marked price, 25% at 15% discount and the remaining at 20% discount. What is his overall percentage gain? (a) 11.25% (b) 11.42% (c) 11.5625% (d) 12.125% Sol: