Instructions

What will come in place of the question mark (?) in the following questions ?

Question 147

$$3\frac{3}{8}\times 6\frac{5}{12}-2\frac{3}{16}\times 3\frac{1}{2}=?$$

Solution

$$3\frac{3}{8}\times 6\frac{5}{12}-2\frac{3}{16}\times 3\frac{1}{2}$$

$$\frac{27}{8}\times\frac{77}{12}-\frac{35}{16}\times\frac{7}{2}$$

$$\frac{77\times27}{96}-\frac{35\times7}{32}$$

= 21.656- 7.656

= 14

Hence option C is correct


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