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Syllabus
1. Minti can do a piece of work in 12 days. Minti and Rinki together can finished the work in 8 days.
Find : (a) The number of days in which Rinki alone can finish the work.
(b) The work left if Rinki alone works on it for 4 days.
2. 10 workers earn Rs. 4,800 in 4 days. What amount will 8 workers earn in 6 days ?
Q. In a figure AB = AC. Prove that BD = BC.
Q.1. State which of the following are polygons :
(i)
(ii)
(iii)
(iv)
(v)
Q1. Find the mean:
x : 5 15 25 35 45
f : 7 8 20 10 5
Q2. Find the mean :
Q3. Find mean, medionand mode.
15, 20, 5, 25, 15, 10, 15, 10 , 5
Q. If ₹1250 amount to ₹1550 in 3 years at simple interest, what will ₹3200 amount to in 4 year at the same rate?
Q12. A sum of money becomes of itself in 5 years at a certain rate of simple interest. Find the rate of interest.
What sum will amount to Rs 2085 in 3 years 4months at 19 by 4 per annum simple interest
Shape ABCD is a parallelogram.
a Work out the size of .
b Find .
Q.6. Construct a triangle in which AB = 5.3 cm, . Draw its line or lines of symmetry.
FIGURE
How much is :
(i) 45 % of 180 people ?
(ii) 3% of 150 g ?
(iii) 95 % of 4 Kg 560 g ?
(iv) 60 % of 3 l 905 ml ?
(v) 52 % of 94 ?