Skip to content
Philoid
Browse Saved
Back to chapter
Maths
Delhi-2015
Home · Class 10 · Maths · Ref. Book · Delhi-2015
Prev
Next
Q23 of 47 Page 1

Solve for x:

⇒ ⇒ ⇒ 5x(7x-5) = 46(x + 1)(x-2)


⇒ 35x2-25x = 46x2-46x-92


⇒ 11x2-21x-92 = 0


⇒ 11x2-44x + 23x-92 = 0


⇒ 11x(x-4) + 23(x-4) = 0


⇒ (11x + 23)(x-4) = 0


⇒ x = 4 or


More from this chapter

All 47 →
21

The numerator of a fraction is 3 less than its denominator. If 2 is added to both the numerator and the denominator, then the sum of the new fraction and original fraction is . Find the original fraction.

22

Ramkali required `2500 after 12 weeks to send her daughter to school. She saved 100 in the first week and increased savings by 20 every week. Find whether she will be able to send her daughter to school after 12 weeks.

What value is generated in the above situation?

24

Prove that the tangent at any point of a circle is perpendicular to the radius through the point of contact.

25

In Fig. 7, tangents PQ and PR are drawn from an external point P to a circle with centre O, such that ∠RPQ = 30°. A chord RS is drawn parallel to the tangent PQ. Find ∠RQS.

Questions · 47
Delhi-2015
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 10 18 19 20 28 29 30 31 10 18 19 20 28 29 30 31
Back to chapter
ADVERTISEMENT
About Contact Privacy Terms
Philoid · 2026
  • Home
  • Search
  • Browse
  • Quiz
  • Saved