MEDIUM
RRB NTPC CBT 1
IMPORTANT
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An alloy contains zinc, copper and tin in the ratio 2:3:1 and another contains copper, tin and lead in the ratio 5:4:3. If equal weights of both alloys are melted together to form a third alloy, then the weight of lead per kg in the new alloy will be?

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Important Questions on Practice Set

EASY
RRB NTPC CBT 1
IMPORTANT
A can do a work in 15 days and B in 30 days. If they work on it together, then in how many days will they be able to do 50% of the work?
EASY
RRB NTPC CBT 1
IMPORTANT
The ratio of the present ages of two brothers is 1 :2 and 5 year back the ratio was 1 :3. What will be the ratio of their ages after 5 year?
EASY
RRB NTPC CBT 1
IMPORTANT
Between 6 pm and 7 pm, the minute hand of a clock will be ahead of the hour hand by 3 min at:
EASY
RRB NTPC CBT 1
IMPORTANT
Select the wrong number in a given series from the given alternatives.
3, 5, 8, 11, 17, 23
MEDIUM
RRB NTPC CBT 1
IMPORTANT

A ate grapes and pineapple, B ate grapes and oranges, C ate oranges, pineapple and apple, and D ate grapes, apple and pineapple.

After taking fruits, B and C fell sick. In light of the above facts, it can be said that the cause of sickness was?

EASY
RRB NTPC CBT 1
IMPORTANT
Statement : The old order changed yielding place to new.
Conclusions
I. Change is the law of nature.
II. Discard old ideas because they are old.
MEDIUM
RRB NTPC CBT 1
IMPORTANT
A boy walks Northwards. After a while, he turns towards his right and a little farther to his left. Finally, after walking a distance of 1 km, he turns to his left again. In which direction, he is moving now?
(A) North  (B) South  (C) East   (D) West
EASY
RRB NTPC CBT 1
IMPORTANT

Find the missing term from the given responses in the following question.

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(A) 52 (B) 42 (C) 59 (D) 17