Arithmetic Word Questions- This is one of the most important topic and usually it carries a lot of marks. In IBPS RRB 2020 exam, one can easily expect 10-15 questions from the various arithmetic questions. Arithmetic topics mainly involves Time & Work, Simple Interest and Compund Interest, Profit & loss etc. Questions based on these topics and some more can be asked in the exam. These topics are examiners favorite topics to play with. The concept of any of the Arithmetic topic can be asked in the form of Caselet or DI thus the importance of this section increases more. In this space we will be giving you all the important formulas related to each and every topic of Arithmetic and along with the we will also be providing you the free PDF to download and practice what you have learned here. Make sure that you go through the formulas before attempting the questions from the PDF to get the maximum benefits.
Arithmetic Word Questions For IBPS RRB Exam 2020
Given below are some of the important formulas of the important topics from Arithmetic. Make sure you read them well and then practice them from the PDF given at the end of this article:
Time and Work
- If P can do a piece of work in n days, work done by P in day
- If B does work in a day, B can finish the work in days.
- If in the question, men can do work in days working hours per day and men can do work in days working hours per day, then
- If P takes days and Q takes days, P and Q together can finish it in days.
- If P is thrice as good as Q in work, then
- ratio of work done by P and Q
- ratio of time taken to finish a work by P and Q
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Simple Interest & Compund Interest
- If Principal is P, Rate is R% per annum, Time is n years.
- If we are asked to Compound the Interest annually
Amount = P 1 + R n 100
- If we are asked to Compound the Interest Half-yearly:
Amount = P 1 + (R/2) 2n 100
- If we are asked to Compound the Interest Quarterly:
Amount = P 1 + (R/4) 4n 100
If we are asked to Compound the Interest annually but time is in fraction, say 3 years.
Amount = P 1 + R 3 x 1 + R 100 100
- If we are given rates for years, say R1%, R2%, R3% for 1st, 2nd and 3rd year respectively.
Then, Amount = P 1 + R1 1 + R2 1 + R3 . 100 100 100
- Present worth of Rs. x due n years hence is given by:
Present Worth = x 1 + R n 100
Profit & Loss
- Profit = (S.P.) – (C.P.)
- Loss = (C.P.) – (S.P.)
- Loss or Profit is always calculated on C.P.
- Profit Percentage: (Profit %)
Profit % = Profit x 100 C.P.
- Loss Percentage: (Loss %)
Loss % = Loss x 100 C.P.
- Selling Price: (S.P.)
SP = (100 + Gain %) x C.P 100
- Selling Price: (S.P.)
SP = (100 – Loss %) x C.P. 100
- Cost Price: (C.P.)
C.P. = 100 x S.P. (100 + Gain %)
- Cost Price: (C.P.)
C.P. = 100 x S.P. (100 – Loss %)
Time, Speed & Distance
- Formulas to find Speed, Time and Distance:
Speed = Distance , Time = Distance , Distance = (Speed x Time). Time Speed
- Formula to convert km/hr to m/sec:
x km/hr = x x 5 m/sec. 18
- Formula to convert m/sec to km/hr:
x m/sec = x x 18 km/hr. 5
If in the question, the ratio of the speeds of A and B is a : b, then the ratio of the
the times taken by then to cover the same distance is 1 : 1 or b : a. a b
If in the question, it is given that a boy covers a certain distance at x km/hr and an equal distance at y km/hr. Then,
the average speed during the whole journey is 2xy km/hr. x + y
Mixture and Alligation
- If in the question, two ingredients are mixed, then
Quantity of cheaper = C.P. of dearer – Mean Price Quantity of dearer Mean price – C.P. of cheaper
It is represented as:
C.P. of a unit quantity
of cheaperC.P. of a unit quantity
(c) Mean Price
(d) (d – m) (m – c)
(Cheaper quantity) : (Dearer quantity) = (d – m) : (m – c).
If in the question, a container contains x of liquid from which y units are taken out and replaced by water. we use the given below formula:
After n operations, the quantity of pure liquid = x 1 – y n units. x
Given above are some of the important formulas that one must know to ace this section and now that you know them it’s time to practice them with the help of a free PDF given below.
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