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136.

Find the smallest number of 4 digit which is exactly divisible by 12, 15, 18 and 20.

137.

178 ,194,208 and 214 are divided by the same number leaving reminders 2,7,10and 5 respectively . Find the maximum possible value of the number .

138.

Determine the largest length of the tape, which can measure tape of 5 cm, 7cm, and 13 cm?

139.

Street lamps start at the interval of 5, 10, 15, 20, and 25 seconds, calculate the number in which the street lamps began together in 40 minutes?

140.

If the ratio between the three numbers is 2:3:5 and their L.C.M is 180, calculate their sum?

141.

Find the largest numbers that will divide 12, 60, 90 and will give a similar remainder

142.

Find out the largest number which gives a remainder of 6 and 9 when it divides 66 and 81?

143.

The L.C.M of the two given numbers is 60 if they are determined in the ratio of 2:3, calculate their sum

144.

The L.C.M of the three given numbers is 80 if they are determined in the ratio of 4:5, calculate their sum

145.

E, F, and G initiated to walk in a similar direction at the same time. They walk around a circular path. If E finishes the walk in 250 seconds, F finishes the walk in 300 seconds, and G finishes the walk in 210 seconds, at what time they all will meet

146.

4 children are born at intervals of 2 years. On adding their ages, we get the sum 40 years. How old is the eldest child?

147.

Find the H.C.F of 54 and 12 through long division method.

148.

Finding L.C.M of 30,126 and 165 by common division

149.

The lcm of 2 numbers is 1320 and their hcf is 6.If their sum is 186 then what is their difference?

150.

3 What is the HCF and LCM of 43,86,126 and 252?

151.

Find the largest number that is exactly divided by 36, 42 and 54.

152.

A natural number leaves 5 as remainder when it divides 575 and leaves 6 as remainder when if divides 386. Find the greatest possible value it can take.

153.

The greatest posiible length whih can be used to measure exactly the lengths 7 m,3 m 85 cm,12 m 95 cm is

154.

Find LCM and HCF of the following question:-

What is the HCF of 16,18 and 14,and also find their LCM?

155.

Q.If 12,16,20 and 24 are even number.Then find its HCF?

156.

what is the HCF of 8, 10, 16

157.

If the lcm of two numbers is 24 and hcf of numbers is 1 find the numbers

158.

2,4, and 6 are even number.find lcm and HCF of the following.

159.

The LCM of 21, 51 and a number k is 4641. If HCF is 3, then find the least possible value of k?

160.

The GCD and L.C.M of two numbers are 2 and 28 respectively . One number is 4.

Find the another number.

161.

Q3. The HCF of 154, 196 and 308 is:

162.

Q5. Which of the following fraction is largest?