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E:\Working\Focus_Learning\Math_Genius-8\Open_Files\09_Chapter_7\Chapter_7
             \ 06-Jan-2025  Bharat Arora   Proof-7             Reader’s Sign _______________________ Date __________








                                                       Chapter assessment
              A.  Choose the correct option.

              1.  40% of [100 – 20% of 300] is equal to

                (a)  20                  (b)  16                  (c)  140                 (d)  64
              2.  If ‘P’ is the principal amount, ‘r’ is the rate of interest and ‘n’ is the number of years, which formula
                 can be used to calculate compound interest when compounded semi-annually?
                                r    2n                                      r    n  
                (a)  CI =  P   1 +    − 1                     (b)  CI =  P   1 +    −  1
                               100                                         100   
                                r   4n                                       r   2n  
                 (c)  CI =  P   1 +    − 1                    (d)  CI =  P   1 +    −  1
                               400                                         200    

              3.  Sagun lends `2,88,000 to her friend at the rate of 12% p.a. for 9 months. How much interest will she get?
                (a)  `25,920             (b)  `34,560             (c)  `3,11,040           (d)  `3,13,920

              4.  The compound interest on `5000 at 4% per annum for 2 years compounded annually is

                (a)  `804                (b)  `708                (c)  `408                (d)  `5408
              5.  If the selling price of a fan at 5% profit is `630, then its cost price is

                (a)  `600                (b)  `650                (c)  `680                (d)  `700
              6.  If an article bought for `1,357 includes 18% GST, then the price of the article without GST is

                (a)  `1,162              (b)  `1,150              (c)  `1,250              (d)  `1,126
              7.  A shopkeeper bought 10 machines for `7,50,000 from a wholesale store. He marked the price of each
                 machine as `80,000. If he sold each machine after a discount of 10%, which of the following is his
                 overall profit or loss?
                (a)  a loss of `30,000   (b)  a loss of `80,000   (c)  a profit of `30,000   (d)  a profit of `80,000

              8.  Lata bought a teapot for `120 and a set of cups for `400. She sold the teapot at a profit of 5% and
                 cups at a loss of 5%. The amount received by her is

                (a)  `494                (b)  `546                (c)  `506                (d)  `534
              B.  Assertion and Reason Type Questions.

                 In the following question, a statement of Assertion (A) is followed by a statement of Reason (R).
                 Choose the correct option.

                (a)  Both Assertion (A) and Reason (R) are true and Reason (R) is the correct explanation of Assertion (A).

                (b)  Both Assertion (A) and Reason (R) are true but Reason (R) is not the correct explanation of
                    Assertion (A).
                 (c)  Assertion (A) is true but Reason (R) is false.
                (d)  Assertion (A) is false but Reason (R) is true.

              1.  Assertion (A):  Neha bought a cup for `76 after getting a 5% discount on its marked price of `80.

                  Reason (R):   Sale price = Marked price – Discount

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