A bag contains 12 white balls and ‘x’ blue balls. The probability of picking a white ball at random from the bag is 3/5. Find the sum of the number of white and blue balls in the bag. a) 25 b) 30 c) 40 d) 20 e) None of these Sol: Probability of picking a […]
Directions: Find out the wrong number in the following number series. Q. 48, 120, 420, 1880, 10395, 67567.5 A.67567.5 B.120 C.1880 D.420 E.10395 Sol: 48 * 2.5 = 120 120 * 3.5 = 420 420 * 4.5 = 1890 1890 * 5.5 = 10395 10395 * 6.5 = 67567.5
Directions: Find out the wrong number in the following number series. Q. 1, 8, 48, 192, 384, 768 A.768 B.192 C.8 D.384 E.48 Sol: 1 * 8 = 8 8 * 6 = 48 48 * 4 = 192 192 * 2 = 384 384 * 0 = 0
Q. 33.33% of 44.98 + 66.66% of 69.08 = ? A.61 B.73 C.57 D.79 E.91 Sol: 33.33% of 44.98 + 66.66% of 69.08 = ? 3/9 * 45 + 6/9 * 69 = ? 15 + 46 = ? ? = 61
Directions: Find out the wrong number in the following number series. Q. 7, 26, 52, 87, 136, 192 A.192 B.87 C.26 D.136 E.52 Sol: 7 + 32 + 10 = 26 26 + 42 + 10 = 52 52 + 52 + 10 = 87 87 + 62 + 10 = 133 133 + 72
Ratio of the radius of the cone and the height of the cone is 7:9 respectively and the radius of the cone is 50% of the radius of the semicircle. If the circumference of the semicircle is 72 cm, then find the volume of the cone? A. 616 cm3 B. 1232 cm3 C. 462 cm3
360 sweet boxes are distributed among A, B and C. If the ratio of the number of sweet boxes distributed by A and C is 12:11 respectively and the number of sweet boxes distributed by B is 8.33% more than that of A, then find the difference between the number of sweet boxes distributed between
Arun sold 25% of his handbags at a profit of 10%, 33.33% of the remaining handbags sold at a loss of 10% and the remaining handbags sold at a profit of 20%. If Arun gets an overall profit of Rs.400, then find the total cost price of handbags? A. Rs.2000 B. Rs.4000 C. Rs.1000 D.
(135.02 ÷ 12.98) * (117.23 ÷ 8.91) = ? A.120 B.125 C.140 D.150 E.135 Sol: (135.02 ÷ 12.98) * (117.23 ÷ 8.91) = ? 135 = ?
A vessel containing the ratio of milk and water is 4:3 respectively. When 15 liters of water are added to the mixture, now the quantity of milk and water in the mixture become equal. If 21 liters of mixture is taken out from the initial mixture, then find the quantity of milk in the new
