Equation + addition - practice problems
Number of problems found: 181
- Digits sum
A two digit number is 3 times the sum of its digits. If 45 is added to the number, its digits are interchanged. Find the sum of the digits of the number. - The sum 52 The sum of digits of a two digits number is 10. On interchanging the digit, the number obtained is 54 less than the original number. What is the original number?
- The sum 51
The sum of two numbers is 100 and difference is 37 . Find the difference between their squares. - Shares
1300 USD are divided among A, B, C and D in such a way that: share of (A/B)=(B/C)=(C/D) = (2/3)
- The common difference 2
Find the common difference of an arithmetic progression (AP), whose first term is 5 and sum of its first 4 terms is half the sum of the next four terms. - The common difference
Find the common difference of an arithmetic progression (AP), whose 1st term is 5 and the sum of its 1st 4 terms is half the sum of the next four terms. - The average 14
The average of the present ages of Susan and Beata is 36 years .If Susan is 8 years older than Beata. What is the Beata's present age? - Consecutive odd numbers
Find three consecutive odd numbers whose sum is 93. - The sum 46 The sum of the ages of 5 children born at the intervals of 3 years each is 50 years. What is the age of the youngest child?
- Lara's sequence
Lara starts with a number less than 20. She divides it by 2 and adds 6. She then divides this result by 3. Her answer is 4.5. What number does she start with? - Fraction number
If two-thirds of a number is added to one-ninth of the same number, the result is 7. Find the number. - Cupcakes
Keia and Hiro made a total of 27 cupcakes. Keia made 2 times as many cupcakes as Hiro. How many cupcakes did Hiro make? - EE school boarding
Three vectors, A, B, and C, are related as follows: A/C = 2 at 120 deg, A + B = -5 + j15, C = conjugate of B. Find C. - The numerator The numerator of the fraction is 5 more than its denominator. If 4 is added to the numerator and denominator, the fraction obtained is 6/5. What is that fraction?
- Each pack
Each pack of hot dogs costs 3.50, and each pack of hot dog buns costs 2.00. The lunchroom staff spends 48.00 when they buy an equal number of hot dogs and hot dog buns. How many packs of hot dogs and hot dog buns do they buy? - Flower shop
In a flower shop, a bunch containing 3 tulips, 2 roses, and 1 daffodil cost $10.79. A different bunch containing 1 tulip, 2 roses, and 3 daffodils costs $10.13. A tulip costs 35 cents more than a rose. How much does 1 tulip and 1 rose, and 1 daffodil cost - Which 15
Which two digits need to be interchanged to make the following equation correct? 16+7*2+4-3=12 A) 2 and 4 B) 7 and 4 C) 16 and 2 D) 7 and 3 - Xero had
Xero had a piece of ribbon. He used 0.4 of it to tie 2 small boxes and 2 large boxes. The length of ribbon needed for a large box is 3 times the length of ribbon needed for a small box. Xero used 5/6 of the remaining ribbon to decorate the presents. a) Wh - Small and large bread
Kipton's aunt bakes a large loaf of bread and a small loaf of bread. She cuts each loaf into tenths and gives Kipton 2 tenths of each loaf to take home. Kipton writes the equation 2/10 + 2/10 = 4/10 to show the amount of bread he takes home. Explain Kipto
Do you have unsolved problem that you need help? Ask a question, and we will try to solve it. Solving math problems.
