Question

12. \( \left(\frac{1}{1.4}+\frac{1}{4.7}+\frac{1}{7.10}+\frac{1}{10.13}+\frac{1}{13.16}\right) \) is equal to (1) \( \frac{1}{3} \) (2) \( \frac{5}{16} \) (3) \( \frac{3}{8} \) (4) \( \frac{41}{7280} \) 13. \( \frac{1}{137 \times 137 \times 137+133 \times 133+18221} \) is equal to (1) 4 (2) 270 (3) \( \frac{1}{4} \) (4) \( \frac{1}{270} \) 14. \[ \frac{(5.624)^{3}+(4.376)^{3}}{5.624 \times 5} \frac{}{624-(5.624 \times 4376)+4.376 \times 4.376} \] is equal to (1) 10 (2) 1.248 (3) 20.44 (4) 1 15. The value of \[ \left[\frac{(0.337+0.126)^{2}-(0.337-0.126)^{2}}{0.337 \times 0.126}\right] \text { is } \] (1) 4 (2) 0.211 (2) 0.463 (4) 0.4246 16. \( [8.7 \times 8.7+2 \times 8.7 \times 1.3+1.3 \) \( \times 1.3 \mathrm{l} \) is equal to (1) 1.69 (2) 10 (?) 75.69 (4) 100

          12. \( \left(\frac{1}{1.4}+\frac{1}{4.7}+\frac{1}{7.10}+\frac{1}{10.13}+\frac{1}{13.16}\right) \) is equal to
(1) \( \frac{1}{3} \)
(2) \( \frac{5}{16} \)
(3) \( \frac{3}{8} \)
(4) \( \frac{41}{7280} \)
13. \( \frac{1}{137 \times 137 \times 137+133 \times 133+18221} \) is equal to
(1) 4
(2) 270
(3) \( \frac{1}{4} \)
(4) \( \frac{1}{270} \)
14.
\[
\frac{(5.624)^{3}+(4.376)^{3}}{5.624 \times 5} \frac{}{624-(5.624 \times 4376)+4.376 \times 4.376}
\]
is equal to
(1) 10
(2) 1.248
(3) 20.44
(4) 1
15. The value of
\[
\left[\frac{(0.337+0.126)^{2}-(0.337-0.126)^{2}}{0.337 \times 0.126}\right] \text { is }
\]
(1) 4
(2) 0.211
(2) 0.463
(4) 0.4246
16. \( [8.7 \times 8.7+2 \times 8.7 \times 1.3+1.3 \) \( \times 1.3 \mathrm{l} \) is equal to
(1) 1.69
(2) 10
(?) 75.69
(4) 100

12. ((1)/(1.4)+(1)/(4.7)+(1)/(7.10)+(1)/(10.13)+(1)/(13.16)) is equal to
(1) (1)/(3)
(2) (5)/(16)
(3) (3)/(8)
(4) (41)/(7280)
13. (1)/(137 × 137 × 137+133 × 133+18221) is equal to
(1) 4
(2) 270
(3) (1)/(4)
(4) (1)/(270)
14.

((5.624)^3+(4.376)^3)/(5.624 × 5)()/(624-(5.624 × 4376)+4.376 × 4.376)

is equal to
(1) 10
(2) 1.248
(3) 20.44
(4) 1
15. The value of

[((0.337+0.126)^2-(0.337-0.126)^2)/(0.337 × 0.126)] is

(1) 4
(2) 0.211
(2) 0.463
(4) 0.4246
16. [8.7 × 8.7+2 × 8.7 × 1.3+1.3 × 1.3 l is equal to
(1) 1.69
(2) 10
(?) 75.69
(4) 100

Added by Aaron M.

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