NCERT Exemplar Solutions
Class 7 - Mathematics - Unit 7: Comparing Quantities - Problems and Solutions
Question 129

Question. 129

Match each of the entries in Column I with the appropriate entries in Column II:

Column IColumn II
(i) 3:5(A) ₹ 54
(ii) 2.5(B) ₹ 47
(iii) 100%(C) ₹ 53
(iv) 2/3(D) ₹ 160
(v) 6¼%(E) 60%
(vi) 12.5%(F) 25%
(vii) SP when CP = ₹ 50 and loss = 6%(G) 1/16
(viii) SP when CP = ₹ 50 and profit = ₹ 4(H) 250%
(ix) Profit% when CP = ₹ 40 and SP = ₹ 50(I) ₹ 159
(x) Profit% when CP = ₹ 50 and SP = ₹ 60(J) 66⅔%
(xi) Interest when principal = ₹ 800, rate = 10% per annum, period = 2 years(K) 20%
(xii) Amount when principal = ₹ 150, rate = 6% per annum, period = 1 year(L) 0.125

Answer:

(i) ↔ E, (ii) ↔ H, (iii) ↔ O, (iv) ↔ J, (v) ↔ G, (vi) ↔ L, (vii) ↔ B, (viii) ↔ A, (ix) ↔ F, (x) ↔ K, (xi) ↔ D, (xii) ↔ I

Detailed Answer with Explanation:

Each item is matched by converting ratio, % or calculating SP/CP and SI as given. Example: 2.5 = 250% = (ii ↔ H), etc.

NCERT Exemplar Solutions Class 7 – Mathematics – Unit 7: Comparing Quantities – Problems and Solutions | Detailed Answers