In trapezium ABCD, AB ‖ DC┤. The sides AD and BC are produced to meet at E. If AB =
15cm, CD= 10lcm, AD – 4cm and BC = 5cm, then DE=?
a) 9 cm b) 10 cm c) 6cm d) 8 cm
If x + 9y is divisible by 5, where x and y are integers, then what is the remainder when 8x
+ 7y is divided by 5?
a) 2 b) 3 c) 1 d) 0
The ratio of monthly incomes of A and B is 3: 4 and the ratio of their monthly savings is
7: 6. If the income of A is equal to twice the expenditure of B, then what is the ratio of
the expenditures of A and B?
a) 2: 1 b) 3: 5 c) 2: 3 d) 1: 2
Alloys A and B contain copper and zinc in the ratio 1: 3 and 3 : 5, respectively. In what
ratio A and B be mixed to get a new alloy containing copper and zinc in the ratio 1: 2?
a) 3: 4 b) 2 : 1 c) 1 : 2 d) 4 : 5
A dealer allows 36% discount on the marked price of an article and still gains 28%. If the
cost price of the article is reduced by 10%, how much discount percent should he allow
now so as to get the same percentage of profit as before?
a) 45.8% b) 54.2% c) 57.2% d) 42.4%
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