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Correct Answer: 2

Solution : $25(4+3 p) \div 5-3 \times 8=26$ 
⇒ $ 5(4+3 p)-24=26$
⇒ $20+15p=50$
⇒ $15p=30$
$\therefore p=2$
Hence, the correct answer is 2.

Correct Answer: PELLUCID

Solution : The correct choice is the first option.

Explanation:

The word opaque means not transparent or not allowing light to pass through. To find the antonym, we need a word that means transparent or allowing light to pass through. Pellucid fits this definition and

Correct Answer: De Broglie waves

Solution : The correct answer is De Broglie waves.

De Broglie waves, also known as matter waves, were introduced by the French physicist Louis de Broglie in 1924. De Broglie proposed that particles, such as electrons, and other subatomic particles, can exhibit both particle-like and

Correct Answer: Patrick Steptoe and Robert Edwards 

Solution : The correct answer is Patrick Steptoe and Robert Edwards 

The invention of IVF is attributed to Sir Robert Edwards and Patrick Steptoe. When a woman's fallopian tubes were blocked in 1978, Dr. Steptoe treated her. Robert Edwards, a physiologist at Cambridge

Correct Answer: Two triangles are congruent if the size and shape of the triangles may or may not be equal.

Solution : Two triangles are congruent if they have the same shape and size.
In other words, the corresponding angles and sides of the two triangles are equal.
Congruent triangles

Correct Answer: 17

Solution : Time after which the 5 bells will toll together = LCM of 5, 10, 15, 20, and 25
= 5 × 5 × 3 × 2 × 2
= 300 seconds
= 5 minutes
Total time = 1 hour 20 minutes
= 60 + 20

Correct Answer: 27°

Solution : Given, $\cos3A = \sin (A-18°)$
We know, $\cos A = \sin(90°-A)$
⇒ $\sin(90°-3A)=\sin(A-18°)$
⇒ $90°-3A=A-18°$
⇒ $90°+18 = A+3A$
⇒ $4A=108°$
⇒ $A=27°$
Hence, the correct answer is 27°.

Correct Answer: babbb

Solution : Given:
_ _ babbba_a_ _

To fill the series we have to divide the series – _ _ b/abb/ba _/a_ _
Let's check each option –
First option: baaab; bab/abb/baa/aab (No repeated pattern has been found)
Second option: babbb; bab/abb/ba

Correct Answer: 41

Solution : Given: 25 + 12 – 2 + (4 + 2)
= 25 + 12 –  2 + 6
= 41
Hence, the correct answer is 41.

Correct Answer: 2

Solution : $x^{2}+y^{2}+\frac{1}{x^{2}}+\frac{1}{y^{2}}-4=0$
$⇒x^{2}+\frac{1}{x^{2}}-2+y^{2}+\frac{1}{y^{2}}-2=0$
$⇒(x-\frac{1}{x})^2+(y-\frac{1}{y})^2 = 0$
So, $x-\frac{1}{x}=0$ and $y-\frac{1}{y}=0$
⇒ $x^2-1=0$ and $y^2-1=0$
⇒ $x^2 = 1$ and $y^2 = 1$
$\therefore x^{2}+y^{2}= 1 + 1 = 2$
Hence, the correct answer is 2.