61. The dimension of an open box are 50 cm, 40 cm, and 23 cm. Its thickness is 3 cm. If 1 cubic cm of metal is used in the box weighs 0.5 gms, find the weight of the box.
(A) 11.02 Kg
(B) 6 Kg
(C) 8.04 Kg
(D) 10 kg
Answer:
Explanation:
62. An electric pump can fill a tank in 3 hours. Because of a leak in the tank, it took 3.5 hours to fill the tank. If the tank is full, how much time will the leak take to empty it?
(A) 21 hours
(B) 11 hours
(C) 9 hours
(D) 17 hours
Answer:
Explanation:
63. If 2A = 3B = 4C, then A: B: C is:
(A) 4:3:2
(B) 2:3:4
(C) 20:15:2
(D) 6:4:3
Answer:
Explanation:
64. If 40% of a number is equal to two-third of another number, what is the ratio of first number to the second number?
(A) 2:5
(B) 3:7
(C) 5:3
(D) 7:3
Answer:
Explanation:
65. Reena is taller than Bina, but shorter than Aditi. Anu is shorter than Bina but taller than Manju. Ekta is taller than Reena. Who among them is the tallest?
(A) Ekta
(B) Aditi or Ekta
(C) Ekta or Reena
(D) Aditi
Answer:
Explanation: