Related Questions

Given that, 24 carat gold is pure gold, 18 carat gold is 3/4th of pure gold and 20 carat gold is 5/6th of pure gold, the ratio of the pure gold in 18 carat gold to the pure gold in 20 carat gold is -
A 5 : 8
B 10 : 9
C 8 : 5
D 9 : 10
In a rare coin collection, all coins are either pure gold or pure silver , and there is initially one gold coin for every three silver coins . With the addition of 10 more gold coins to the collection, the ratio of gold coins to silver coins is 1 to 2. Based on this information , how many total coins are there now in this collection (after the acquisition)?
A 40
B 50
C 70
D 90
A certain dentist specializes in implanting gold and silver teeth in his patients mouths .He charges $ 650 for a gold tooth an $ 325. for a silver tooth. If his told fees for implanting gold and silver teeth last week were $ 15, 925 in total and he implanted five more gold teeth that silver teeth, how many teeth in total did he implant over the week?
A 33
B 32
C 31
D 34
Tropical deserts are rich in ________ resources.
A Mineral
B Agricultural
C Soil
D Animal
Unless the new reserves are found soon, the world's supply of coal is being depleted in such a way that with demand continuing to grow at present rates, reserves will be exhausted by the year 2050. Which of the following , if true , will weaken he above a
A There has been a slowdown in the rate of increase in world demand for coal over the last 5 years from 10% to 5%
B It has been known for many years that there are vast stocks of coal under Antarctica which have yet to be economically exploited
C Oil is being used increasingly in place of coal for many industrial and domestic uses
D As coal resources are depleted more and marginal supplies , which are more costly to produce and less efficient in use , are being mined
Unless new reserves are found , the world's supply of coal is being depleted in such a way that with demand continuing to grow at present rate, reserves will be exhausted by the year 2050. What is the best conclusion that can be drawn from the above paragraph ?
A It is the time to search for alternative
B New reserves of coal would be found before 2050
C Demand for coal is growing fast
D World's coal reserve is declining
"the girl is meritorious , she must come of a rich come of a rich family. the speaker most probably assumes which of the following.?
A Girls from rich families look nice
B There is a direct relationship between merit and wealth
C Merit is an outcome of hard work
D Merit is measured by performance on exams .
Rich cement mortars are more liable to cracking as compared to lean mortars because rich mortars have
A High shrinkage
B Less strength
C Both (A) and (B)
D None of above
The only zone in the country that produces gold is also rich in iron is
A North-eastern zone
B North-western zone
C Southern zone
D None of the above
The Gobi Desert is one of the largest deserts on Earth. A part of it lies in which of the following countries?
A Australia
B Saudi Arabia
C Mongolia
D Madagascar

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