Question

23.The Cost of a table and chair is Rs.125 and Rs.75 respectively. Find the cost of 25
suchtables and chairs.
24. Find:
(a) 35-(20)
(b) (-32)-(-40)
(c) (-7)+(-8)+(-90)​

Answer 1

Answer:

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Answer 2

$23) \: \: \: \: \: \: \: \: Given, \\ \\ cost \: of \: 1 \: table \: = \: ₹125 \\ \\ \therefore \: cost \: of \: 25 \: chairs \: will \: b e\: = \: 125 \times 25= ₹3125 \\ \\ \\ cost \: of \: 1 \: chair \: \: = ₹75 \\ \\ \therefore \: cost \: of \: 25 \: chairs \: = 75 \times 25 = ₹1875$

$24) \: \: \: \: \: \: \: \: a) \: 35 - (20) = 35 - 20 = 15 \\ \\ b) \: - 32 - ( - 40) = - 32 + 40 = 8 \\ \\ c) \: ( - 7) + ( - 8) + ( - 90) = - 7 - 8 - 90 = - 15 - 90 = - 105$