Question

nes
umbers
IV. Solve the following.
(1) Subtract -1000 from its predecessor.
(2) How much cloth is required to make 80 sets
of uniforms, if a set needs 2 m for the shirt
and 3 m for the pants?
(3) Find the LCM of 48, 84, and 132 by division
method
(4) The HCF and LCM of two numbers are 25 and
2275 respectively. If one of the numbers is
175, find the other number.
(5) A car gives a mileage of 25 km for every litre
of fuel. What distance can the car cover with
198 litres of fuel?
5)
r?
+ 15?
the
?
(6) Write the sum of the largest 4-digit negative
integer and the largest 3-digit positive
integer.
(7) The population of a city was 52,83,978
in 2011. In the year 2012, it increased by
62,539. What was the population in 2012?
(8) Linda exercises every 6 days and Sangeetha
exercises every 9 days. If both Linda and
Sangeetha have exercised together today,
after how many days will they exercise
together again?
(9) If37,17,750 is paid to purchase 15 computers,
what is the rate of a computer?
(10) If 144 pencils and 120 pens have to be
divided among the largest number of girls,
what will be the share of each girl?
elf
es.
е​

Answer 1

Step-by-step explanation:

Find the prime factorization of 48

48 = 2 × 2 × 2 × 2 × 3

Find the prime factorization of 84

84 = 2 × 2 × 3 × 7

Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the LCM:

LCM = 2 × 2 × 2 × 2 × 3 × 7

LCM = 336