Question

1)Are the following numbers in proportion?
28:35 and 20 : 25

2)A student scores 90% marks in Maths. If her actual marks are 90, the total marks

of the paper = ___________.


b) If the weight of 6 bags of grain is 273 kg, then the weight of 1 bag of grain is

_____________.


c) When two ratios are equal, they are said to be in ______________.


d) When observations are arranged in increasing order, the middle observation is

called the ____________.


e) Product of extremes = Product of means. This is called the _________

___________ rule.

3)Choose the correct answer:-

a) In the given proportion: 25cm : 1m and Rs.40 : Rs.160, the extreme terms are :-

i) 1m, Rs.40 ii) 25cm, 1m iii) 25cm, Rs.160 iv) 1m , Rs.160


b) If the cost of 1 dozen oranges is Rs.240, then 2 oranges will cost Rs._______

i) Rs.20 ii) Rs.40 iii) Rs.30 iv) None of these


c) 0.075 when expressed as a percentage is ________

i) 75% ii) 0.75% iii) 7.5% iv) None of these

d) If a, b, c, d are in proportion, then


i) ab = cd ii) ad = bc iii) ac = bd iv) None of these


e) The mean of the first 4 even whole numbers = ______

i) 3 ii) 10 iii) 5 iv) None of these

4)Find the median of the following data:-

16, 12, 18, 20, 22, 14, 16

5)A man earns Rs. 90,000 in 6 months. How much money will he earn in 2 years?


6.An ice-cream vendor has 120 ice cream cups of different flavours. 25% of these cups

are chocolate flavoured.

i) Find the number of chocolate ice-creams.

ii) How many ice cream cups are of other flavours?


7The number of students in the different sections of class 6 are as follows:-

45, 48, 50, 52, 43, 46, 51, 47, 50.

Find the mean of the above data.
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Answer 1

Answer:

1) Ans: 28: 35 and 20: 25 they are not in proportion.

3) Ans : iv) is the answer