ML Aggarwal Class 9 Solutions Chapter 16 Chapter Test Question 1. (a) Calculate the area of the shaded region.(b) If the sides of a square are lengthened by 3 cm, the area becomes 121 cm2. Find the perimeter of the original square. Answer: (a) In the figure, OA ⊥ BC AC = 15 cm, AO = 12 cm, BO = 5 cm, BC = 14 cm ∴ OC = BC - BO = 14 - 5 = 9 cm Area of right ∆AOC = base × … [Read more...] about ML Aggarwal Class 9 Mensuration Chapter Test

## ML Aggarwal Class 9 Trigonometric Ratios Chapter Test

ML Aggarwal Class 9 Solutions Chapter 17 Chapter Test Question 1. (a) From the figure (i) given below, calculate all the six t-ratio for both acute angles. (b) From the figure (ii) given below, find the values of x and y in terms of t-ratio of θ.Answer: Given ∆ ABC is right angled at B, Then in right angled ∆ ABC, By Pythagoras theorem, we get AC2 = AB2 + BC2 ⇒ AB2 … [Read more...] about ML Aggarwal Class 9 Trigonometric Ratios Chapter Test

## ML Aggarwal Class 9 Compound Interest Chapter Test

ML Aggarwal Class 9 Solutions Chapter 2 Chapter Test Question 1. ₹ 10000 were lent for one year at 10% per annum. By how much more will the interest be, if the sum was lent at 10% per annum, interest being compounded half-yearly ? Solution: Principal = ₹10000 Rate of interest (r) = 10% p.a. Period = 1 yearQuestion 2. A man invests ₹3072 for two years at compound … [Read more...] about ML Aggarwal Class 9 Compound Interest Chapter Test

## ML Aggarwal Class 9 Rational and Irrational Numbers Chapter Test

ML Aggarwal Class 9 Solutions Chapter 1 Chapter Test Question 1. Without actual division, find whether the following rational numbers are terminating decimals, or recurring decimals.In case of terminating decimals, write their decimal expansions. Solution: (i) The fraction whose denominator is the multiple of 2 or 5 or both, Is a terminating decimal. Now, in , ∵ 45 = 3 … [Read more...] about ML Aggarwal Class 9 Rational and Irrational Numbers Chapter Test

## ML Aggarwal Class 9 Logarithms Chapter Test

ML Aggarwal Class 9 Solutions Chapter 9 Chapter Test Question 1. Expand Answer:Question 2. Find the value of Answer:Question 3. Prove the followingAnswer:= 2[log 11 - log 13] + [log 130 - log 77] - [log 55 - log 91] = 2 [log - log 13] + [log 13 × 10 - log 11 × 7] - [log 11 - log 13 × 7] = 2 [log 11 - log 13] + [(log 13 + log 10) - (log 11 + log 7)] … [Read more...] about ML Aggarwal Class 9 Logarithms Chapter Test