Question
Which test is commonly used to detect the presence of
starch in milk adulteration?Solution
The appearance of a blue color after adding iodine solution to a milk sample indicates the presence of starch as an adulterant
Rohit, Dhawan, Virat, Dhoni and Mayank a re five friends. Their mean age is 28. What is the age of Virat ?
Statement I : Rohit’s age is 28...
There are 7 people in a group. Average age of the group decreases by 5 when two more people join the group. Find the average age of the new group.
<...P, Q and R together can complete a work in 12 days. All of them worked together for 6 days and then P left. How much time will Q and R together will tak...
What was the age of Sonu 10 years ago?
I. Ram is seven years older than Sonu.
II. The ratio of Ram’s present age to Sonu’s is 5:4...
In how many days, men Lal, Bal and Pal together can finish the same piece of work
Statement I: Lal and Bal can together finish the same piece of ...
What is the speed of man in still water?
Statement I : The speed of man in still water is twice the speed of the stream.
Statement II : ...
Find the number of females in an office.
Statement I: Â The ratio of number of males to females is 5: 4.
Statement II: Â The number of m...
The cost price of an article is Rs. 600. How much profit did a trader get by selling the article, if it was sold at 15% discount?
I. The trader ...
What was the per cent profit/loss made/incurred by selling an article for Rs. 24000?
Statement I. The ratio between the selling price and the co...
What was the price of House P last year?
Statement I: Â The ratio of the price of two houses P to Q was 3:4 last year.
Statement II: Â T...