Question

New ex.2.2 . Prob.1- If you subtract 1/2 from a no. And multiply the resultant by 1/2 ,you get 1/8,what is the no.? Prob -2. The perimeter of a rectangular swimming pool is 154 m.it's length is 2m more than twice of it's breadth .what are the length and breadth ? Hint- let breadth is x then length will be x+2 ,now put the value of length and breadth in formula of perimeter and =154 .you will get the value of x or breadth and then 8 to it to get length. Prob-3. The base of an isosceles tringle is 4/3 cm.the perimeter of the triangle is 62/15 cm. What is the length of either of the remaining equal sides? Hint- let each equal sides are x .so we know that prmt of triangle is sum of all sides. So put the value and get the answer in formula. ? Prob -4. Sum of two no.is 95 .if one no. Exceeds the other by 15 .find the no.? Hint - let the no's are x and x+15 now add these no.and equal to 95 to get the answer. Prob-5. Two no. are in the ratio 5:3 .if they differ by 18 .what are the no.? Hint-let the no's are 5x and 3x ,so 5x-3x=18 solve and get the value of x and then multiply by 5 and 3 to get the number's.​

Answer 1

Answer:

1) 3/4

2) Length = 25m

   breadth = 52m

3) Each equal side = 1.4cm

4) First number is 40

    Second number is 55

5) First number is 27

   Second number is 45

Hope this helps!

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