Competive Exam Set 1 : Q. What is 10% of 20% ? Q. What is 40% of 40% ? Q. What is 20% of 30% ?

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Q. What is 10% of 20% ? প্ৰশ্ন: 20%-ৰ 10% কিমান ?

Options: (A) 200%  (B) 20%  (C) 2%  (D) 0.2%

Trick

20% × 10% = 20/100 × 10/100 = 200/10000 = 2/100 = 2%

Ans: (C) 2%

Super Short Trick

"x%-ৰ y%" = (x × y) ÷ 100

(20×10) ÷ 100 = 2%

Ans / উত্তৰ: 2%

Q. What is 40% of 40% ? প্ৰশ্ন: 40%-ৰ 40% কিমান ?

Options: A. 1600%  B. 160%  C. 16%  D. 1.6%

Short Trick

40% of 40%

= 40 × 40 /100 = 1600 / 100 = $$16\; \%$$

Ans: (C) 16%

Super Fast Rule

x%-ৰ y% = (x × y) ÷ 100 %

(40×40) ÷ 100 = 16%

Ans: C. 16%

Q. What is 20% of 30% ? প্ৰশ্ন: 30%-ৰ 20% কিমান ?

Options: A. 600%  B. 60%  C. 6%  D. 0.6%

Short Trick

30% of 20% = 30 × 20 / 100 = 600/100 $$=6\%$$

Ans: (C) 6%

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Percentage of Percentage – Practice Questions

• What is 10% of 40% ? Option: A. 2% B. 4% C. 8% D. 10%


• What is 20% of 50% ? Option: A. 5% B. 10% C. 15% D. 20%


• What is 25% of 40% ? Option: A. 8% B. 10% C. 12% D. 15%


• What is 15% of 60% ? Option: A. 6% B. 8% C. 9% D. 12%


• What is 30% of 70% ? Option: A. 18% B. 20% C. 21% D. 24%


• What is 5% of 80% ? Option: A. 2% B. 4% C. 6% D. 8%


• What is 12% of 25% ? Option: A. 2% B. 3% C. 4% D. 5%


• What is 50% of 50% ? Option: A. 20% B. 25% C. 30% D. 35%

Rule: x% of $y\%$ = $(x\times y)÷100$%

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