NCERT Exemplar Solutions
Class 6 - Mathematics - Unit 7: Algebra
Fill in the Blanks

In question 24 to 40, fill in the blanks to make the statements true:

Question. 24

The distance (in km) travelled in h hours at a constant speed of 40 km per hour is _________.

Answer:

The distance (in km) travelled in h hours at a constant speed of 40 km per hour is 40h.

Open

Question. 25

p kg of potatoes are bought for Rs 70. Cost of 1 kg of potatoes (in Rs) is _________.

Answer:

p kg of potatoes are bought for Rs 70. Cost of 1 kg of potatoes (in Rs) is 70/p.

Open

Question. 26

An auto rickshaw charges Rs 10 for the first kilometre then Rs 8 for each such subsequent kilometre. The total charge (in Rs) for d kilometres is _________.

Answer:

The total charge (in Rs) for d kilometres is 10 + 8(d – 1).

Open

Question. 27

If 7x + 4 = 25, then the value of x is _________.

Answer:

If 7x + 4 = 25, then the value of x is 3.

Open

Question. 28

The solution of the equation 3x + 7 = –20 is _________.

Answer:

The solution of the equation 3x + 7 = –20 is –9.

Open

Question. 29

‘x exceeds y by 7’ can be expressed as _________.

Answer:

‘x exceeds y by 7’ can be expressed as x = y + 7.

Open

Question. 30

‘8 more than three times the number x’ can be written as _________.

Answer:

‘8 more than three times the number x’ can be written as 3x + 8.

Open

Question. 31

Number of pencils bought for Rs x at the rate of Rs 2 per pencil is _________.

Answer:

Number of pencils bought for Rs x at the rate of Rs 2 per pencil is x/2.

Open

Question. 32

The number of days in w weeks is _________.

Answer:

The number of days in w weeks is 7w.

Open

Question. 33

Annual salary at r rupees per month along with a festival bonus of Rs 2000 is _________.

Answer:

Annual salary at r rupees per month along with a festival bonus of Rs 2000 is 12r + 2000.

Open

Question. 34

The two digit number whose ten’s digit is ‘t’ and units’s digit is ‘u’ is _________.

Answer:

The two digit number whose ten’s digit is ‘t’ and units’s digit is ‘u’ is 10t + u.

Open

Question. 35

The variable used in the equation 2p + 8 = 18 is _________.

Answer:

The variable used in the equation 2p + 8 = 18 is p.

Open

Question. 36

x metres = _________ centimetres.

Answer:

x metres = 100x centimetres.

Open

Question. 37

p litres = _________ millilitres.

Answer:

p litres = 1000p millilitres.

Open

Question. 38

r rupees = _________ paise.

Answer:

r rupees = 100r paise.

Open

Question. 39

If the present age of Ramandeep is n years, then her age after 7 years will be _________.

Answer:

If the present age of Ramandeep is n years, then her age after 7 years will be n + 7.

Open

Question. 40

If I spend f rupees from 100 rupees, the money left with me is _________ rupees.

Answer:

If I spend f rupees from 100 rupees, the money left with me is 100 – f rupees.

Open

NCERT Exemplar Solutions Class 6 – Mathematics – Unit 7: Algebra – Fill in the Blanks | Detailed Answers