Percentage
Practice Questions on Percentage
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Q15) A = p% of 3q and B = r% of 4p. Which of the following is true if it's given that A > B and p > 0. 1) r < 75% of q 2) r = 75% of q 3) r > 125% of p 4) Can't say Solution:  Hence, option 1. Q16) If 40% of p = q, then q% of 40 is 1) 40% of p 2) 8% of p 3) 25% of p 4) 16% of p Solution: q = 2p/5 q% of 40 = 2q/5 = 4p/25 i.e. 16% of p. Hence, option 4. Q17) Find the percentage error in the calculation if a number is multiplied by 3/5 instead of 5/3? 1) 36% 2) 64% 3) 56.25% 4) 100% Solution: Say the number is 15 (LCM of 3,5) Error in calculation  Actual number   Hence, option 2. Q18) If 25% of p = q, then what will be the value of 40% of q in terms of p? 1) 15% of p 2) 62.5% of p 3) 160% of p 4) 10% of p Solution: A.T.Q. q = p/4; 2q/5 = p/10 i.e. 10% of p Hence, option 4. Q19) Jack spends 20% more than Amy. Then Amy spends 1) 20% less than Jack 2) 16.66 % less than Jack 3) 25% less than Jack 4) 9.09% less than Jack Solution: Say Amy spends Rs 100 so, Jack spends Rs 120 So, Amy spends (20/120)100 = 16.66% less than Jack. Hence, option 2. |
