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Q. 94.1( 29 Votes )

Replace the blank with an integer to make it a true statement:

(a) (-3) ×___=27

(b) 5×=-35

(c) _×(-8)= -56

(d) __×(-12)= 132

Class 7th NCERT Mathematics 1. Integers

Answer :

(a) We have,

(-3) × (…..) = 27

So,

(-3) × (-9) = 27

(b) We have,

5 × (…..) = - 35

So,

5 × (-7) = - 35

(c) We have,

(…..) × (-8) = - 56

So,

7 × (-8) = - 56

(d) We have,

(…..) × (-12) = 132

So,

(-11) × (-12) = 132

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PREVIOUSA cement company earns a profit of Rs. 8 per bag of white cement sold and a loss of Rs. 5 per bag of grey cement sold.(a) The company sells 3,000 bags of white cement and 5,000 bags of grey cement in a month. What is its profit or loss?(b) What is the number of white cement bags it must sell to have neither profit nor loss, if the number of grey bags sod is 6,400 bags?NEXTEvaluate each of the following:(a) (–30) ÷ 10(b) 50 ÷ (–5)(c) (–36) ÷ (–9)(d) (– 49) ÷ (49)(e) 13 ÷ [(–2) + 1](f) 0 ÷ (–12)(g) (–31) ÷ [(–30) + (–1)](h) [(–36) ÷ 12] ÷ 3(i) [(– 6) + 5)] ÷ [(–2) + 1]

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