New Learning Composite Mathematics SK Gupta Anubhuti Gangal Class 8 Rational Numbers Self Practice 1F Solution
(1) A group of friends hike 23/4 km, stops for lunc, and then hike another 16/5 km. How far did they hike?
(2) Ms Joshi walks her dog 4/5 km each day. What is the total distance that Ms Joshi walks her dog in 6 days?
(3) Priya completes 1/20 of her painting each day. How much of her painting does she complete 5 days?
(4) An oxygen tank contained 219-2/3 L of oxygen before 32-1/3 L were used. If the tank can hold 245-3/8 L, how much space in the tank is unused?
(5) A water pipe has an outside diameter of 3.5 cm and a wall thickness of 25/32 cm. What is the inside diameter of the pipe?
(6) Find the perimeter and area of a rectangular piece of land measuring 12-1/2 m by 5-1/5 m. How much area of the land is left unused if 4 small square flower beds of side length 1 m are made at the centre?
SOLUTION Number 1 to 6:
(7) Out of a certain sum of money a boy spends 3/5, and then 1/4 of the remainder. He has Rs 15 left. How much amount had he at first?
SOLUTION Number 7:
(8) 10-1/2 tonnes of sand are to be shared between a number of buiders. One of them receieves 4/7 of the total and the remaining sand is shared by 3 builders. How much does the fourth builder recieve and how much sand does each of the other 3 builders receieve?
(9) A man aged 27 marries a woman aged 24, he dies at the age of 81 and she dies at the age of 91. For what fraction of his life is the man married? For what fraction of her life is the woman a widow?
(10) Shalini has to cut out circles a diameter 1-1/4 cm from an aluminium strip of dimensions 8-3/4 cm by 1-1/4 cm. How many full circles can Shalini cut? Also calculate the wastage of the aluminium strip.
SOLUTION Number 8 to 10:
you should keep the mcqs solution also
Yes it’s write you should keep the MCQ questions also
Ok will do it
yes please give the solutions of MCQs also
You are my god
It’s write plz give mcqs also
Its okay
In que.no.4 exercise 1f u have done many things wrong but ur answer is comming right how?????