## RS Aggarwal Class 6 Solutions Chapter 10 Ratio, Proportion and Unitary Method Ex 10D

These Solutions are part of RS Aggarwal Solutions Class 6. Here we have given RS Aggarwal Solutions Class 6 Chapter 10 Ratio, Proportion and Unitary Method Ex 10D.

**Other Exercises**

**OBJECTIVE QUESTIONS****Mark against the correct answer in each of the following :**

**Question 1****Solution:**

(d) (\ frac { 92 }{ 115 })

**Question 2.****Solution:**

(a) (\ frac { 57 }{ x })

= (\ frac { 51 }{ 85 })

**Question 3.****Solution:**

(a) (\ frac { 25 }{ 35 })

= (\ frac { 45 }{ x })

**Question 4.****Solution:**

(c) (\ frac { 4 }{ 5 })

= (\ frac { x }{ 35 })

**Question 5.****Solution:**

(b) (\ frac { a }{ b })

= (\ frac { c }{ d })

=>ad = bc

**Question 6.****Solution:**

(b) a : b :: b : c

**Question 7.****Solution:**

(b) (\ frac { 5 }{ 8 }) < (\ frac { 3 }{ 4 }) => 4 x 5 < 3 x 8 => 20 < 24

**Question 8.****Solution:**

Total amount = Rs 760

Ratio A : B = 8 : 11

**Question 9.****Solution:**

(d) largest = (\ frac { 252times 7 }{ 5+7 })

= (\ frac { 252times 7 }{ 12 })

= 21 x 7

= 147

**Question 10.****Solution:**

(b) largest = (\ frac { 90times 5 }{ 1+3+5 })

= (\ frac { 90times 5 }{ 9 })

= 50 cm

**Question 11.****Solution:**

(c) total strength of school

largest = (\ frac { 840 }{ 5 }) x (12 + 5)

= (\ frac { 840times 17 }{ 5 })

= 168 x 17

= 2856

**Question 12.****Solution:**

(b) Cost of 12 pens = Rs 138

Cost of 1 pen = Rs (\ frac { 138times 14 }{ 12 })

and cost of 14 pens = Rs 161

**Question 13.****Solution:**

(b) (\ frac { 24times 15 }{ 8 })

= 45 days

**Question 14.****Solution:**

(a) (\ frac { 26times 40 }{ 20 })

= 52 men

**Question 15.****Solution:**

(b) In 6 L of petrol, a car covers = 111 km

In 1 L, it will cover = (\ frac { 111 }{ 6 }) km

and in 10 L it will cover = (\ frac { 111times 10 }{ 6 }) km

= 185 km

**Question 16.****Solution:**

(a) (\ frac { 28times 550 }{ 700 })

= 22 days

**Question 17.****Solution:**

Ratio in the angles of triangle

= 3 : 1 : 2

**Question 18.****Solution:**

(b) Ratio in length and breadth of a rectangle = 5 : 4

Width = 36 m

Length = (\ frac { 5 }{ 4 }) x 36 m

= 45m

**Question 19.****Solution:**

Bus covers in 3 hrs = 195 km

It will cover in 1 hr = (\ frac { 195 }{ 3 }) = 65 km

**Question 20.****Solution:**

1 dozen = 12 bars

Cost of 5 bars of soap = Rs.82.50

**Question 21.****Solution:**

Total pencils in 30 packets of 8 pencils

= 30 x 8= 240

and total pencils of 25 packets of 12

pencils = 25 x 12 = 300

Now cost of 240 pencils = Rs. 600

Then cost of 1 percent = Rs. (\ frac { 600 }{ 24 })

and cost of 300 pencils = Rs. (\ frac { 600times 300 }{ 240 })

= Rs 750 (b)

**Question 22.****Solution:**

Journey of 75 km costs = Rs 215

Cost of 1 km = Rs (\ frac { 215 }{ 75 })

**Question 23.****Solution:**

1st term = 12

2nd term = 21

fourth term = 14

**Question 24.****Solution:**

10 boys dig a patch in = 12 hrs

1 boy will dig it in = 12 x 10 hours

Hope given RS Aggarwal Solutions Class 6 Chapter 10 Ratio, Proportion and Unitary Method Ex 10D are helpful to complete your math homework.

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