Class – VII Winter
Assignment
1) Simplify
a) 16 x 2n+1 – 4 x 2n /16 x
2n+2 – 2 x 2n+2 b) [{( - 
)2}-2]-1
)2}-2]-1
2)
If 
=(
)20÷(
)2.
=()20÷()18
Find the value ()2.
3) What should be subtracted from 
to get 
to get
4) How many pieces each of length 
can be cut from a rope of length
.
can be cut from a rope of length.
5) In an examination a student requires 40%
of the total marks to pass, if Sudesh gets 130 marks and fails by 50 marks.
Find the total marks.
6) A sum of Rs. 500 is in the form of denominations
of Rs. 5 and Rs. 10,is the total number of notes is 100. Find the number of
notes of each type.
7) The ages of A and B are in the ratio
4:3. 8 years ago their ages were in the ratio 10:7. Find their present ages.
8) 24 cows can graze a field in 20 days.
How many cows can graze it in 15 days?
9) What number must be subtracted from
each of the numbers 23, 40, 57 and 108 so that the remainders are in
proportion?
10) A friutseller had some apples. He
sells 40% of them and still has 420 apples. How many apples had he in all?
11) The population of a town increases 8% annually. If its present
population is 142560. What was it year ago?
12) A man sold 2 radio0s at Rs. 4800
each. On one he gains 20% and on the other he loses 20%. Find the gain or loss
percent in the whole transaction.
13) A sum of money at simple interest
doubles itself in 8 years 4 months in how much times will it trebles itself.
14) 
In
what time will Rs. 5600 amount to Rs. 6720 at 8% per annum?
In
what time will Rs. 5600 amount to Rs. 6720 at 8% per annum?
15) 
In
a triangle, if 3 A = 4 B = 6
C , find angle A,B,C.
In
a triangle, if 3 A = 4 B = 6
C , find angle A,B,C.
16) A ladder 17m long reaches window
which is 8m above the ground, on one side of the street. Keeping its foot at
the same point, the ladder is turned to the other side of the street to reach a
window at a height of 15m. Find the
width of the street.
Class – VII Winter
Assignment
1) Simplify
b) 16 x 2n+1 – 4 x 2n /16 x
2n+2 – 2 x 2n+2 b) [{( - )2}-2]-1
)2}-2]-1
2)
If
=()20÷()18
Find the value ()2.
3) What should be subtracted from to get
to get
4) How many pieces each of length
can be cut from a rope of length.
5) In an examination a student requires 40%
of the total marks to pass, if Sudesh gets 130 marks and fails by 50 marks.
Find the total marks.
6) A sum of Rs. 500 is in the form of
denominations of Rs. 5 and Rs. 10,is the total number of notes is 100. Find the
number of notes of each type.
7) The ages of A and B are in the ratio
4:3. 8 years ago their ages were in the ratio 10:7. Find their present ages.
8) 24 cows can graze a field in 20
days. How many cows can graze it in 15 days?
9) What number must be subtracted from
each of the numbers 23, 40, 57 and 108 so that the remainders are in
proportion?
10) A friutseller had some apples. He
sells 40% of them and still has 420 apples. How many apples had he in all?
11) The population of a town increases 8% annually. If its present
population is 142560. What was it year ago?
12) A man sold 2 radio0s at Rs. 4800
each. On one he gains 20% and on the other he loses 20%. Find the gain or loss
percent in the whole transaction.
13) A sum of money at simple interest
doubles itself in 8 years 4 months in how much times will it trebles itself.
14) In
what time will Rs. 5600 amount to Rs. 6720 at 8% per annum?
In
what time will Rs. 5600 amount to Rs. 6720 at 8% per annum?
15) In
a triangle, if 3 A = 4 B = 6
C , find angle A,B,C.
In
a triangle, if 3 A = 4 B = 6
C , find angle A,B,C.
16) A ladder 17m long reaches window
which is 8m above the ground, on one side of the street. Keeping its foot at
the same point, the ladder is turned to the other side of the street to reach a
window at a height of 15m. Find the
width of the street.
17) In the adjoining figure P and Q are
the two points on equal sides AB and AC of an isosceles triangle ABC such that
AP = AQ. Prove that BQ = CP.
18) Is it possible to draw a triangle
whose sides have lengths 10.3cm, 5.8cm and 4.6 cm?
19) If one of the angles of the triangle
is 900 and the other two angles are equal. Find each of the equal
angles.
20) Find the number whose 8% is 6.
