Answer: A) 3 Explanation:

Answer: D) 12% p.a. Explanation: If the interest earned is 25% more than the earlier interest then the rate of interest also should be 25% higher than the earlier rate. Let the earlier rate of interest be x%. Now it will be (x + 3)% % increase = (x + 3) - x/x * 100 = 25=> x = 12%

Answer: C) Soda Explanation: Here Soda is a Heterogenous Mixture.   A Heterogeneous Mixture is a mixture having a non-uniform composition i.e, the mixture contains components in different phases. Using various means, the parts in the mixture can be separated from one another.

Answer: D) mitochondrion Explanation: Cellular respiration is best associated with the organelle Mitochondrion.

Answer: D) 2311 cub. cm Explanation: Given Circumference of a circular base of a cylinder = 44 cm We know that Circumference of a circle = 2πr = 44⇒r = 22π Now given the height of a cylinder h = 15 cm Volume of a cylinder V = πr2h = π22π215 = 22 x 22 x 153.14 = 2311 cm3.

Answer: C) Both (A) and (B) follows Explanation:

Answer: A) 100% Explanation: Let the C.P be Rs.100 and S.P be Rs.x, Then The profit is (x-100)Now the S.P is doubled, then the new S.P is 2xNew profit is (2x-100)Now as per the given condition; => 3(x-100) = 2x-100By solving, we get x = 200Then the Profit percent = (200-100)/100 = 100Hence the profit percentage is 100%

Let the speed of Kaushik be Sk and speed of Piyush be Sp and let the time taken by Piyush be t second then,  SkSp = 800t+20600t = 23since given ratio   t = 20 s   Speed of Piyush = Sp = 600/20 = 30 m/s   and    Speed of Kaushik = 800/40 = 20 m/s