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CBSE Class 10 Answered

a = 2 b = 3 c = 5 d = 7 If 2520 = 2 × 3 × 5 × 7 then a + b - 2c - 3d = __________.
Asked by susrisangita792 | 11 Apr, 2023, 09:37: PM
answered-by-expert Expert Answer
Question must be:
If 2520 = 2a x 3b x 5c x 7d, then a+b-2c-3d = 
Answer:
2520 space equals space 2 cross times 2 cross times 2 cross times 3 cross times 3 cross times 5 cross times 7 space equals space 2 cubed cross times 3 squared cross times 5 to the power of 1 cross times 7 to the power of 1
But comma space 2520 equals space 2 to the power of straight a cross times 3 to the power of straight b cross times 5 to the power of straight c cross times 7 to the power of straight d
rightwards double arrow straight a equals 3 comma space straight b equals 2 comma space straight c equals 1 comma space straight d equals 1
rightwards double arrow straight a plus straight b minus 2 straight c minus 3 straight d equals 3 plus 2 minus 2 minus 3 equals 0
Answered by Renu Varma | 12 Apr, 2023, 09:03: AM
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