A bought a tape recorder for Rs 8,000 and sold it to B. B in turn sold
it to C, each earning a profit of 20%. Which of the following is true:
(a) A and B earn the same profit.
(b) A earns more profit than B.
(c) A earns less profit than B.
(d) Cannot be decided
Discuss why wearing more layers of clothing during winter keeps us
warmer than wearing just one thick piece of clothing .
The marked price of an article is Rs 80 and it is sold at Rs 76, then
the discount rate is
(a) 5% (b) 95% (c) 10% (d) appx. 11%
Match the following :
(i) Land breeze blows during (a) summer
(ii) Sea breeze blows during (b) winter
(iii) Dark coloured clothes are preferred during (c) day
(iv) Light coloured clothes are preferred during (d) night
Shyama purchases a scooter costing Rs 36,450 and the rate of
sales tax is 9%, then the total amount paid by her is
(a) Rs 36,490.50 (b) Rs 39,730.50
(c) Rs 36,454.50 (d) Rs 33,169.50
Fill in the blanks :
(a) The hotness of an object is determined by its __________.
(b) Temperature of boiling water cannot be measured by a
_____________ thermometer.
(c) Temperature is measured in degree ______________.
No medium is required for transfer of heat by the process of
__________.
(e) A cold steel spoon is dipped in a cup of hot milk. Heat is transferred
to its other end by the process of ______________.
(f ) Clothes of ______________ colours absorb more heat better than
clothes of light colours.
For calculation of interest compounded half yearly, keeping the
principal same, which one of the following is true.
(a) Double the given annual rate and half the given number of years.
(b) Double the given annual rate as well as the given number of
years.
(c) Half the given annual rate as well as the given number of years.
(d) Half the given annual rate and double the given number of years.
To gain 25% after allowing a discount of 10%, the shopkeeper must
mark the price of the article which costs him Rs 360 as
(a) Rs 500 (b) Rs 450 (c) Rs 460 (d) Rs 486
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