When 6/5 is divided by X and add 1/4, the quotient is 2.5.
Find X.
Showing posts with label Operations. Show all posts
Showing posts with label Operations. Show all posts
Math New Drill : SNJ00-0101-L2 Make formula using four figures
Make a calculation formula to become 10 using all four numbers of 3, 4, 7, 8 with some operation symbols among +, -, ×, /.
Math New Drill : Level 2 SNS00-0103-L2 Find sum of two integers
A, B, C, D, E, F, G, H, I are one of integers of 1～9, respectively.
When A + B = C，B + D = E，E × F =C，and D × D = G, find H + I.
When A + B = C，B + D = E，E × F =C，and D × D = G, find H + I.
Math Problem : AA.3 Transformation of formula
3 × 5 × 5 × 5 + 4 × 5 × 5 + 2 × 5 + 1 = A × A × A + B × A × A + C × A + 3.
Find A, B and C, respectively.
A, B and C are the integers from 1 to 9.
Find A, B and C, respectively.
A, B and C are the integers from 1 to 9.
Math Problem : AA.2 Six digits integer
When integer of 6 digits 5ABC15 becomes a multiple of 999, find the integer ABC of 3 digits.
Math Problem : AA.1 Make formula using 3 four times
Is it possible to set the calculating formula from which the answer is from 1 to 10 by using 3 four times exactly?
Only +, -, x, /, ( ) can be used.
Only +, -, x, /, ( ) can be used.
A.3 Number of bottles filled with water
2 m3 of water is put into the plastic bottles with 1.8L capacity per bottle.
In this case, find the number of the plastic bottles filled with water and the volume (mL) of the remaining water.
In this case, find the number of the plastic bottles filled with water and the volume (mL) of the remaining water.
A.2 2/3 of 5 hours and 15 minutes
How many hours and how many minutes are 2/3 of 5 hours and 15 minutes?
A.5 Magic square 3 x 3 (2)
Other numbers are put into the remaining grids and it is arranged that products of three numbers in any vertical or horizontal row become same.
Find the number in A at this time.
A.4 Magic square 3 x 3
In the table it is made that sum total of each three integers in the line of length, width, and slant become equal.
Find the number applicable to A.
A.1 Number added to be over 1000 of the sum
A number is added in an order from 1 as 1 + 2 + 3 + ------.
When a certain number was added, the sum exceeded 1000 for the first time.
Find both of the number and the sum.
When a certain number was added, the sum exceeded 1000 for the first time.
Find both of the number and the sum.
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