In the given series of numbers how many 7's are there which are immediately followed by 9 and immediately not preceeded by 5 ?
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Roshan's current age is three years less than 1.5 times that of Usha's. 12 years ago Usha's age was three years more than half of Roshan's age. What is Roshan's present age in
'Ganga Action Plan' initiated by the Union Government aims at
In the following question, out of the given four alternatives, select the one which best expresses the meaning of the given word.
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The conversion of hard water into soft water by boiling or adding calcium hydroxide is called _______.
A solution contains 33 g of common salt in 320 g of water. Calculate the concentration in terms of mass, by mass percentage of the solution.
Performance goals are used to
Performance goals are used to measure productivity.
The polar ice-caps are made of ____________ water