Find the least number which when divided by 12, 18, 36 and 45 leaves the remainder 8, 14, 32 and 41 respectively.
176
180
178
178
A.
176
Here, 12 - 8 = 4
18 - 14 = 4
36 - 32 = 4
45 - 41 = 4
The required number
= (LCM of 12, 18, 36 and 45) - 4
L.C.M. = 2 x 2 x 3 x 3 x 5 = 180
The required number = 180 - 4 = 176
An empty pool being filled with water at a constant rate takes 8h to fill 3/5 th of its capacity. How much more time will it take to finish filling the pool?
5 h 30 min
5 h 20 min
4 h 48 min
4 h 50 min
P can do a piece of work in 9 days. Q is 50% more efficient than P. The number of days it takes for Q to do the same piece of work is
6
6
16 men can complete a work in 15 days, 24 children can do the same work in 20 days. In how many days will 8 men and 8 children, complete the same work?
16
20
20
The area of the iron sheet required to prepare a cone 24 cm high with base radius 7 cm is .
708 cm2
804 cm2
704 cm2
704 cm2
On decreasing each side of an equilateral triangle by 2cm, there is a decrease of in its area. The length of each side of the triangle is
3 cm
5 cm
6 cm
6 cm
A rectangular tin sheet is 12 cm long and 5 cm broad. It is rolled along its length to form a cylinder by making the opposite edges just to touch each other. Then, the volume of the cylinder is
180/π cm3
120/π cm3
100/π cm3
60/π cm3
A merchant advertise 10% off on the items bought from his store. The total discount got by a customer who bought a cooker worth ₹ 650, a heater worth ₹ 500 and a bag worth ₹ 65 is
₹ 120.50
₹ 123.50
₹ 128.50
₹ 128.50
What is a better investment, 4% stock at ₹ 120 or 3% stock at ₹ 80?
First
Second
Both
Both