Question

# During normal days, there are 1400 buses travelling in the city. On sunday, about 1562 buses are found. Compared with a normal day, how many more passengers travel by bus on Sunday if each bus has 40 passengers.

A
6400
B
4200
C
5300
D
4100

Solution

## The correct option is A 6400Number of buses on normal days = 1400 Number of buses on Sunday = 1562 Extra buses on Sunday = Number of buses on Sunday  -  Number of buses on normal days = 1560 - 1400   1560 - 1400 _______     160 _______ Therefore, number of extra buses on Sunday = 160  Number of passengers in each buses = 40 Number of passengers in 160 extra buses = 160 x 40 In order to multiply by a number ending in zeros, we first need to multiply the number as if it didn't have zeros, and then we just write all of the zeros the number had, on the right of the final answer. (i) Multiplying the non-zero terms, we get,      2      16 x  04  _______     64 _______ (ii) 160 has one zero and 40 has one zero. So, we write two zers to the right of 64. i.e, 160 x 40 =  6400 Therefore, 6400 more passengers travel by bus on Sunday.Science

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