Question

There are 17 beads in a necklace with the largest and most valuable in the middle. Starting from one end, each successive beads is worth Rs.
100 more than the one before (up to the middle one), but starting from the other end each beads is worth Rs. 50 more than the one before, up to
the big bead. The whole necklace is worth Rs. 15,000. What is the value of the middle pearl (in Rs.)? __[A]
(A),
1.1400
2.1700
3.2000
4.1200​

Answer 1

Answer:

3.2000.........................

Answer 2

Answer:

1200

Step-by-step explanation:

The value of the central pearl is Rs.1200.

The pearl at one end (from which they increased in value by Rs.100): Rs.400.

The pearl at the other end: Rs.800.

Starting from the central pearl, two A.P.’s are formed and sum of those 2 progressions will be Rs.15000. Moving to one side, we have a = x, d =100 and n=9. While on the other side, we have a = x-50, d = -50 and n=8

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