Q.81. Find the least number which when divided by 12, 18, 36 and 45 leaves the remainder 8, 14, 32 and 41 respectively.
(A) 176
(B) 180
(C) 178
(D) 186
Q.82. An empty pool being filled with water at a constant rate taken 8h to fill
(A) 5 h 30 min
(B) 5 h 20 min
(C) 4 h 48 min
(D) 4 h 50 min
Q.83. P can do 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
(A)
(B)
(C) 6
(D) 3
Q.84. 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 ?
(A) 16
(B)
(C) 20
(D) 18
Q.85. The are of the iron sheet required to prepare a cone 24 cm high with base radius 7 cm is (Take π =
(A) 708 cm2
(B) 804 cm2
(C) 704 cm2
(D) 408 cm2
Q.86. On decreasing each side of an equilateral triangle by 2 cm there is a decrease of 4√3 cm2 in its area. The length of each side of the triangle is
(A) 3 cm
(B) 5 cm
(C) 6 cm
(D) 8 cm
Q.87. 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
(A)
(B)
(C)
(D)
Q.88. A merchant advertise 10% off on the items bought from his store. The total discount got by a customer who bought cooker worth Rs.650, a heater worth Rs. 500 and a bag worth Rs. 65 is
(A) Rs. 120.50
(B) Rs. 123.50
(C) Rs. 128.50
(D) Rs. 121.50
Q.89. What is a better investment, 4% stock at Rs. 120 or 3% stock at Rs. 80?
(A) First
(B) Second
(C) Both
(D) None of these.
Q.90. 20% raise of price followed by a discount of 25% of the raised portion will
(A) increase the price by 10%
(B) increase the price by 5%
(C) increase the price by 15%
(D) decrease the price by 15%
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