Q5 of 55 Page 39

By what number should be multiplied so that the quotient is ?

Let’s suppose the number is x


(-3)-1 × (x) = (6)-1





On cross multiplying:


(-x) × 6 = 1 × 3


-6x = 3


6x = -3



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3

Simplify:

4

By what number should be divided so that the quotient is ?

 6

Express each of the following in standard form:

(i) 345


(ii) 180000


(iii) 0.000003


(iv) 0.000027

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The value of is