Today Chumki and Hapiza are making different designs with coloured ribbons. Sayan and Sibu are helping them in their work. So they bought 10.5 m of red ribbon, 64 m of green ribbon and 31.25 m of white ribbons. find the total length of ribbons?

If 64 m long green ribbon is made into piece of length 8 m each then find the number of pieces?

Again, 31.25 , m long white ribbon is made into piece of length 0.25 m each. find number of pieces?

A 17 m long ribbon is divided into 14 equal arts. Let's find the value of each equal part.

A bamboo stick is 2m long, 75 cm of it is coloured red and rest part coloured white. (ii) Let's find the ratio between the total length of bamboo and the porition painted white.

A bamboo stick is 2m long. 75 cm of it is coloured red and rest part coloured white. (i) find the ratio between the total length of bamboo and the portion painted red.

By actual division let us find if the quotient is terminating decimal number or recurring decimal number: 7 m long ribbon is divided into 8 equal pieces, let's find the length of each piece.

In Young's double slit experiment the coherent sources are 1.5 mm apart and the fringes are obtained on a screen at a distance 2.5 m from the plane of the sources. If the sources is illuminated with a light of 589.3 nm wavelength , find the number of fringes in the interference pattern thus formed on the screen. Total length of the fringes are 4.9 xx 10 ^(-3) m.

Anyesha bought 1 metre long ribbon. But to make a border of a card, she does not need such a long piece. So she cuts lapout 2/5 part of it. It is still longer for the purpose. Then she again cuts of 3/4 portion from 2/5 part of ribbon.how much she actually used for border making?

From 16frac(2)(3) m long ribbon, 3/8 part is cut off. If it is further divided into 5 equal pieces, lets find the length of each pieces.

A composite rod is made by joining a copper rod, end to end, with a second rod of a different material but of same cross-section. At 25^(@)C , the composite rod is 1 m in length of which the length of the copper rod is 30 cm. At 125^(@)C the length of the composite rod increases by 1.91 mm. The coefficient of linear expansion of copper is alpha=1.7 times 10^(-5@)C^(-1) and that of the second rod is beta=n times 10^(-5@)C^(-1) . Find the value of n.