Question
The ratio of the speed of boats ‘A’ and ‘B’ in
still water is 8:9, respectively. The speed of the current is 25% of the speed of boat ‘A’ in still water. If boat ‘A’ takes 7.5 hours to travel 750 km downstream, then find the time taken by boat ‘B’ to travel 210 km upstream and 330 km downstream. (Note: Both the boats are rowing in the same stream.)Solution
Let the speeds of boats ‘A’ and ‘B’ in still water be 8x km/hr and 9x km/hr Therefore, speed of the current = 0.25 × 8x = 2x km/hr According to the question, 8x + 2x = 750/7.5 Or, 10x = 100 Or, x = 10 Therefore, upstream speed of boat ‘B’ = 9x – 2x = 7x = 70 km/hr Downstream speed of boat ‘B’ = 9x + 2x = 11x = 110 km/hr Required time taken = (210/70) + (330/110) = 3 + 3 = 6 hours
- Select the correct mirror image of the given figure when the mirror is placed to the right side of the figure.
Select the correct mirror image of the given combination when the mirror is placed to the right side of the figure.
Select the correct mirror image of the given combination when the mirror is placed at ‘MN’ as shown.
Choose the correct image of the given question from the given options.
Select the correct mirror image of the given combination when the mirror is placed at MN as shown below:
Identify the correct mirror image of the following figure when mirror is placed to the right of the given figure.
Select the correct mirror image of the given combination when the mirror is placed at ‘PQ’ as shown.
If a mirror is placed on the line XY, then which of the answer figures is the mirror image of the given figure?
If a mirror is placed on the line MN, then out of the option figures which figure will be the mirror image of the question figure?
![](https://...</a></li> <div class="clearfix mt-3"></div>
</ul>
</div>
<div class="col-sm-12">
<h4>Relevant for Exams:</h4>
<div class="relevntBox">
<ul class="relevantForExam">
<a href="https://www.ixambee.com/exams/ibps-po">
<li>IBPS PO</li>
</a>
<a href="https://www.ixambee.com/exams/ifsca-assistant-manager">
<li>IFSCA Officer Grade A (Assistant Manager)</li>
</a>
</ul>
</div>
</div>
</div>
<div class="row mb-5" id="ask-doubt" cd="6">
<div class="col-sm-12" id="ask_doubt_div">
<div class="need-any-help-user">
<div class="row group_this_form_leads">
<div class="col-sm-2 d-none d-md-block">
<img src="https://www.ixambee.com/v5/assets/images/ask-question.svg" alt="ask-question">
</div>
</div>
<div class="thankyou-msg text-center" style="display:none;">
<div class="check-circle">
<i class="fas fa-check-circle"></i>
</div>
<p>Thank You for posting your query. Please check your email for further guidance</p>
</div>
</div>
</div>
<!-- // ask doubt end here -->
</div>
</div>
<!-- // container end here -->
<!-- Modal -->
<div class="modal fade" id="myModal_login" tabindex="-1" aria-labelledby="loginModalLabel" aria-hidden="true">
<div class="modal-dialog modal-dialog-centered">
<div class="modal-content">
<div class="modal-body text-center">
<p>Please Register/Login to Download Question</p>
</div>
<div class="modal-footer justify-content-center">
<a href="https://www.ixambee.com" id="login_red" class="btn btn-primary">Login</a>
<a href="https://www.ixambee.com" id="reg_red" class="btn btn-primary">Register</a>
</div>
</div>
</div>
</div>
</main>
<footer id="footer">
<div class="bottomfooter">
<div class="container-fluid">
<div class="row">
<!-- Social Icons -->
<div class="col-sm-12 col-md-12 col-lg-3 social-icons">
<a title="Facebook" href="https://www.facebook.com/ixambee/" target="_blank">
<i class="fab fa-facebook-square"></i>
</a>
<a title="Twitter" href="https://twitter.com/ixambee" target="_blank">
<i class="fab fa-twitter-square"></i>
</a>
<a title="Youtube" href="https://www.youtube.com/channel/UCwB1sptW5PPeaXnrW5Yb3-A" target="_blank">
<i class="fab fa-youtube-square"></i>
</a>
<a title="Instagram" href="https://www.instagram.com/ixambee/" target="_blank">
<i class="fab fa-instagram-square"></i>
</a>
</div>
<!-- Contact Details -->
<div class="col-sm-12 col-md-12 col-lg-6 text-center companyDetails">
<h3 id="phone_no" class="">
<a href="tel:+919205524028" style="color: black; padding:0;">+919205524028</a>
Available Mon-Sat (10 AM to 7 PM)
</h3>
<p>
<a href="mailto:hello@ixambee.com" style="color: black; padding:0;">hello@ixambee.com</a>
</p>
</div>
<!-- Copyright -->
<div class="col-sm-12 col-md-12 col-lg-3 copyright">
<h3>© ATOZLEARN EDUTECH PRIVATE LIMITED All rights reserved.</h3>
<a href="https://www.ixambee.com/privacy_and_policy" style="color: black;">
Privacy & Policy
</a>
</div>
</div>
</div>
</div>
</footer>
<script>
window.IS_PRODUCTION = true;
window.PAGE_PATH = "questions/quantitative-aptitude/boats-and-streams/254841";
window.BASE_URL = "https://www.ixambee.com";
const lastSegment = PAGE_PATH.split()
