[3 marks sum]

Question 13 Marks

A made 84 runs in 6 overs and B made 126 runs in 7 overs. Who made more runs per over?

Answer

Runs scored by $A$ in 6 overs $=84$ runs
Runs scored by $A$ in one over $=\frac{84}{6}=14$ runs
Runs scored by $B$ in 7 overs $=126$ runs
Runs scored by $B$ in one over $=\frac{126}{7}=18$ runs
B score more runs per over than A.

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Question 23 Marks

In a particular week, a man works for 48 hours and earns ₹ 4,320. But in the next week he worked 6 hours less, how much has he earned in this week?

Answer

Money earned for working 48 hours = ₹ 4320
Money earned for working 1 hour = ₹ $\frac{4320}{48}$
Money earned for working 42 hours (48-6 hours)
= ₹$\frac{4320}{48} \times 42$ = ₹3780

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Question 33 Marks

Rohit buys 10 pens for ₹ 150 and Manoj buys 14 pens for ₹ 168. Who got the pens cheaper?

Answer

Rohit buys 10 pens = ₹ 150
Cost of one pen = $\frac{150}{10}$= ₹ 15
Manoj buys 14 pens = ₹ 168
Cost of one pen $=\frac{168}{14}=$ ₹ 12
Manoj buys cheaper pen

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Question 43 Marks

Cost of $10$ kg of wheat is $₹ 180.$ What quantity of wheat can be purchased in $₹ 432?$

Answer

Cost of $10 kg$ wheat =₹ 180
Wheat purchased by ₹ $180=10 kg$
Wheat purchased by ₹ $1=\frac{10}{180}$
$\therefore$ Wheat purchased by ₹ 432
$=\frac{10}{180} \times 432 $
$ =24\ kg $

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MATHS [3 marks sum]

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