1) Jitesh purchased a story book for Rs. 79.10 including tax.
If the printed price of the book is Rs.70, find the rate of tax paid by Jitesh
2) Find the Compound Interest on Rs. 10000 for 2 years at 4% per annum, the interest being compounded half-yearly
3) The price of a TV is Rs. 20000. The GST charged on it is 12%. Find the final bill amount that the customer has to pay if he buys it
4) Find 3 consecutive even numbers such that the sum of twice the least number and thrice the greatest number is 622
5) Find the Compound Interest on Rs. 50000 for 3 years if the interest for 3 consecutive years are 4% , 6% and 9% respectively
6) A banquet hall is of length 16m, breadth 12.5m and height 4.5m.
Calculate the number of persons that can be accomodated in the banquet hall assuming each person needs 3.6 metre cube of air
7) Find the dimensions of a rectangle whose perimeter is 54m , given the condition that length is 3m less than twice the breadth
8) Find the cost of painting a cuboid of length, breadth and height as 4m, 3.5m and 3m respectively at the rate of Rs. 2.50 per square metre
9) The adjacent sides of a parallelogram are in the ratio 5:3.
The perimeter of the parallelogram is 192 cm.
Find each side of the parallelogram
Answers
Answer:
2)Principal = Rs. 10000; Rate = 2% per half-year; Time = 2 years = 4 half-years. Amount == Rs. 10824.32.
We know that consecutive numbers differ by 1 and consecutive even numbers differ by 2.
So we may assume the following as the required even numbers,
x, ( x + 2 ) and ( x + 4 )
Now on reading the question carefully we can form the following equation which in turn would help us to find the required answer.
2x + 3 ( x + 4 ) = 622
2x + 3x + 12 = 622
5x = 622 - 12
5x = 610
x = 610 / 5
x = 122
Hence the required consecutive even numbers are as follows,
122, ( 122 + 2 ) and ( 122 + 4 )
122, 124 and 126
5)50,000 in 3 years, compounded yearly, if the rates for the successive years are 6%, 8% and 10% respectively will amount to Rs. 62,964. So, the correct answer is Rs. 62,964”.
6)Given that hall of Length = 16 m, Breadth = 12.5 m, Height = 4.5 m. Therefore, number of men that can be accommodated = 900 / 3.6 = 250.
9)Given that,
Adjacent sides =5:3
Perimeter =48cm
Length of each side=?
Opposite sides of parallelogram are equal,
Thus, 3rd and 4th side =5:3
Let length of sides be=x
Perimeter of parallelogram =sum of all sides
48=5x−3x+5x+3x
48=16x
x=1648
x=3cm
Length of 1 and 3rd side =15cm
Length of 2nd and 4th side 3×3=9cm
Length are =15cm.9cm,15cm,9cm
Hope it helps you