Arithmetic

Arithmetic looks like the easy part of GMAT Quant, which is exactly why it is dangerous: the test writers hide difficulty in fractions, percents, ratios, and remainders rather than in advanced math. These Problem Solving questions drill the number sense the rest of Quant is built on — decimal and fraction manipulation, percent change, ratio splits, and divisibility. If your accuracy here is below 90%, fix that before touching harder topics; arithmetic errors are the most common source of lost points on questions you knew how to solve.

Divisibility, remainders, factors, multiples.·Show:20 30 50

All

Start Practice

Sub 505 (Easy)

(0.3) 5 (0.3) 3 =

Sub 505 (Easy)

If the average (arithmetic mean) of x and y is 60 and the average (arithmetic mean) of y and z is 80, what is the value of z-x?.

Sub 505 (Easy)

If the average (arithmetic mean) of the four numbers K, 2K + 3, 3K â 5 and 5K + 1 is 63, what is the value of K?

Sub 505 (Easy)

If x = -3, what is the value of -3x^2 ?

505-555 (Easy)

If the two digit integers M and N are positive and have the same digits, but in reverse order, which of the following cannot be the sum of M and N?

Sub 505 (Easy)

7 1 5 + 5 1 7 =

Sub 505 (Easy)

(7 â + 7 â) 2 (7 + 7) 2

Sub 505 (Easy)

If stock is sold three months after it is purchased, the formula above relates p, d, s, and r, where p is the purchase price of the stock, d is the amount of any dividend received, s is the selling price of the stock, and r is the yield of the investment as a percent. If Rose purchased

400 w or t h o f s t oc k r ece i v e d a

5 dividend and sold the stock for $420, for three months after purchasing it, what was the yield of her investment, according to the formula? (Assuming she paid no commissions.)

Sub 505 (Easy)

The earth travels around the sun at a speed of approximately 18.5 miles per second. The approximate speed is how many miles per hour?

605-655 (Medium)

If 10 50 â 74 is written as an integer in base 10 notation, what is the sum of the digits in that integer?

Sub 505 (Easy)

Which of the following has a value less than 1?

Sub 505 (Easy)

If the product of the integers w, x, y and z is 770, and if 1 < w < x < y < z, what is the value of w + z?

505-555 (Easy)

What is the decimal equivalent of (1/5) 5 ?

Sub 505 (Easy)

The temperatures in degrees Celsius recorded at 6 in the morning in various parts of a certain country were 10, 5, -2, -1, -5, and 15. What is the median of these temperatures?

555-605 (Medium)

Which of the following is the product of two integers whose sum is 11?

505-555 (Easy)

3.003/2.002 =

Sub 505 (Easy)

A television manufacturer produces 600 units of a certain model each month at a cost to the manufacturer of

90 p er u ni t an d a l l o f t h e p r o d u ce d u ni t s a r eso l d e a c hm o n t h . W ha t i s t h e minim u m se l l in g p r i ce p er u ni tt ha tw i l l e n s u r e t ha tt h e m o n t h l y p r o f i t (r e v e n u e f r o m s a l es min u s t h e man u f a c t u r e r^{'} scos tt o p r o d u ce) o n t h es a l eso f t h ese u ni t s w i l l b e a tl e a s t

42,000?

505-555 (Easy)

A certain bakery has 6 employees. It pays annual salaries of

14, 000 t oe a c h o f 2 e m pl oy ees,

16,000 to 1 employee, and $17,000 to each of the remaining 3 employees. The average (arithmetic mean) annual salary of these employees is closest to which of the following?

Sub 505 (Easy)

90 â 8 (20 : 4) 1 2

Sub 505 (Easy)

All of the following have the same value EXCEPT?

← PreviousPage 4 of 8Next →