Byju's Answer

Standard VI

Mathematics

Unitary Method

If 2 erasers ...

Question

If 2 erasers cost Rs 4 and 3 pencils cost Rs 9, then how much would 3 erasers and 2 pencils cost?

₹12

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

₹10

No worries! We‘ve got your back. Try BYJU‘S free classes today!

₹9

No worries! We‘ve got your back. Try BYJU‘S free classes today!

₹15

No worries! We‘ve got your back. Try BYJU‘S free classes today!

Open in App

Solution

The correct option is A ₹12
Cost of 2 erasers = ₹ 4
$\Rightarrow$ Cost of 1 eraser = $\frac{4}{2} = ₹ 2$
Also, Cost of 3 pencils = Rs 9
$\Rightarrow$ Cost of 1 pencil = $\frac{9}{3} = ₹ 3$
$∴$
3 erasers and 2 pencils cost : $3 \times 2$ + $2 \times 3$ = 6 + 6 = ₹12

Suggest Corrections

Similar questions

Q. The cost of

1

pencil and

3

erasers is

R s 10

and cost of

4

pencils and

6

erasers is

R s 28

. Find the cost of

5

pencils and

4

erasers.

Q. The cost of

4

dozen pencils,

3

dozen pens and

2

dozen erasers is Rs.

60

. The cost of

2

dozen pencils,

4

dozen pens and

6

dozen erasers is Rs.

90

whereas the cost of

6

dozen pencils,

2

dozen pens and

3

dozen erasers is Rs.

70

. Find the cost of each items per dozen by using matrices

Q. Given that the total cost of

5

erasers,

7

sharpeners and

9

pencils in Rs.

100

and the total cost of

2

erasers,

6

sharpeners and

10

pencils is Rs.

80

. What is the total cost (in Rs.) of one eraser one sharpener and one pencil?

Q. Total cost of

15

erasers and

25

pencils is Rs.

185

and the total cost of

9

erasers and

x

pencils is Rs.

106

. Which of the following cannot be the value of

x

Q. A pencil costs Rs 5 more than an eraser. The total cost of 5 pencils and 10 erasers is Rs 100. What is the cost of a single pencil and a single eraser?

Join BYJU'S Learning Program

Select...

If 2 erasers cost Rs 4 and 3 pencils cost Rs 9, then how much would 3 erasers and 2 pencils cost?

The correct option is A ₹12Cost of 2 erasers = ₹ 4 ⇒ Cost of 1 eraser = 42=₹ 2 Also, Cost of 3 pencils = Rs 9 ⇒ Cost of 1 pencil = 93=₹ 3 ∴ 3 erasers and 2 pencils cost : 3×2 + 2×3 = 6 + 6 = ₹12

The correct option is A ₹12
Cost of 2 erasers = ₹ 4
$\Rightarrow$ Cost of 1 eraser = $\frac{4}{2} = ₹ 2$
Also, Cost of 3 pencils = Rs 9
$\Rightarrow$ Cost of 1 pencil = $\frac{9}{3} = ₹ 3$
$∴$
3 erasers and 2 pencils cost : $3 \times 2$ + $2 \times 3$ = 6 + 6 = ₹12