Question

Q1. The distance between the school and the house of a student is 1 km 875 m. Everyday she walks both ways between her school and home. Find the total distance covered by her in six days?

Q2. A taxi driver filled his car petrol tank with 40 litres of Monday. The next day he filled the tank with 50 litres of petrol. If the petrol cost ₹ 44 per litre , how much did he spend in all on petrol ?

Q3. Do as directed:
a. Using the concept of multiplication patterns, evaluate 112 * 6255
b. Using suitable properties, find 40 * 2538 * 25

Q4) Estimate the following by rounding off each number to its greatest place?
a. 4,89,348 – 48,365
b. 8351 - 491

Answer 1

Step-by-step explanation:

1.Distance between school and home = 1875m

total distance covered in one day=(1875m+1875m)

distance distance covered in 6 days = 3750×6 = 22500

therefore, 22 km 500m distance covered in 6 days.

2. petrol filled on Monday = 40 litres

petrol filled next day = 50 liters

total petrol filled = 90 liters

now, cost of 1 litre petrol = Rs.44

cost of 90 letters petrol = 44×90

=44×(100-10) = 44×100-44×10 = 4400- 400 = Rs.3960

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