Advertisements
Advertisements
प्रश्न
The sum of twice and four times of the variable x is __________
Advertisements
उत्तर
The sum of twice and four times of the variable x is 6x
APPEARS IN
संबंधित प्रश्न
If a = 2 and b = 3, find the value of ab − a2
Subtract:
5x from 2x
Subtract:
a2 − b2 from b2 − a2
Kartik is n years old. His father is 7n years old.
Make up as many expressions with numbers (no variables) as you can from three numbers 5, 7 and 8. Every number should be used not more than once. Use only addition, subtraction and multiplication.
(Hint: Three possible expressions are 5 + (8 − 7), 5 − (8 − 7), (5 × 8) + 7; make the other expressions.)
Identify the operations (addition, subtraction, division, multiplication) in forming the following expression and tell how the expression have been formed.
17y, `"y"/17`, 5z
Form expressions using y, 2 and 7. Every expression must have y in it. Use only two number operations. These should be different.
In a test Abha gets twice the marks as that of Palak. Two times Abha’s marks and three times Palak’s marks make 280.
- If Palak gets x marks, Abha gets ______ marks.
- The equation formed is ______.
- The solution of the equation is ______.
- Marks obtained by Abha are ______.
In a Mathematics quiz, 30 prizes consisting of 1st and 2nd prizes only are to be given. 1st and 2nd prizes are worth ₹ 2000 and ₹ 1000, respectively. If the total prize money is ₹ 52,000 then show that:
- If 1st prizes are x in number the number of 2nd prizes are ______.
- The total value of prizes in terms of x are ______.
- The equation formed is ______.
- The solution of the equation is ______.
- The number of 1st prizes are ______ and the number of 2nd prizes are ______.
Two-third of a number is greater than one-third of the number by 3. Find the number.
